diff --git a/src/compiler/mod.rs b/src/compiler/mod.rs
index 98e350e..eb06315 100644
--- a/src/compiler/mod.rs
+++ b/src/compiler/mod.rs
@@ -1,9 +1,9 @@
 use std::collections::BTreeMap;
 
+use crate::parser::TemplateAstExpr;
 use crate::input::NomoInput;
 use crate::lexer::TemplateToken;
 use crate::lexer::TokenOperator;
-use crate::parser::TemplateAstExpr;
 use crate::value::NomoValue;
 
 pub struct EmitMachine {
@@ -57,7 +57,6 @@ pub enum Instruction {
     LoadFromContextToSlot {
         name: NomoInput,
         slot: VariableSlot,
-        fail_on_not_found: bool,
     },
     EmitFromSlot {
         slot: VariableSlot,
@@ -425,7 +424,6 @@ fn emit_ast_expr(
         | TemplateAstExpr::Literal { .. }
         | TemplateAstExpr::FunctionCall { .. }
         | TemplateAstExpr::Operation { .. }
-        | TemplateAstExpr::ConditionalAccess { .. }
         | TemplateAstExpr::VariableAccess { .. } => eval.push(Instruction::Abort),
     }
 }
@@ -441,14 +439,6 @@ fn emit_expr_load(
             eval.push(Instruction::LoadFromContextToSlot {
                 name: template_token.source().clone(),
                 slot: emit_slot,
-                fail_on_not_found: true,
-            });
-        }
-        TemplateAstExpr::ConditionalAccess(template_token) => {
-            eval.push(Instruction::LoadFromContextToSlot {
-                name: template_token.source().clone(),
-                slot: emit_slot,
-                fail_on_not_found: false,
             });
         }
         TemplateAstExpr::Literal { source, value } => {
@@ -531,7 +521,6 @@ mod tests {
                     slot: VariableSlot {
                         index: 0,
                     },
-                    fail_on_not_found: true,
                 },
                 EmitFromSlot {
                     slot: VariableSlot {
diff --git a/src/compiler/snapshots/nomo__compiler__tests__check_if_else_if.snap b/src/compiler/snapshots/nomo__compiler__tests__check_if_else_if.snap
index 5cf26c0..de57cc6 100644
--- a/src/compiler/snapshots/nomo__compiler__tests__check_if_else_if.snap
+++ b/src/compiler/snapshots/nomo__compiler__tests__check_if_else_if.snap
@@ -20,7 +20,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 1,
             },
-            fail_on_not_found: true,
         },
         JumpIfNotTrue {
             emit_slot: VariableSlot {
@@ -52,7 +51,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 3,
             },
-            fail_on_not_found: true,
         },
         JumpIfNotTrue {
             emit_slot: VariableSlot {
diff --git a/src/eval/mod.rs b/src/eval/mod.rs
index 62a013f..96ae66e 100644
--- a/src/eval/mod.rs
+++ b/src/eval/mod.rs
@@ -93,34 +93,15 @@ pub fn execute(
         match instr {
             Instruction::NoOp => (),
             Instruction::AppendContent { content } => output.push_str(content),
-            Instruction::LoadFromContextToSlot {
-                name,
-                slot,
-                fail_on_not_found,
-            } => {
-                let value = scopes.get_scoped(name);
-
-                let value = if let Some(val) = value {
-                    val
-                } else {
-                    if *fail_on_not_found {
-                        return Err(EvaluationError::UnknownVariable(name.clone()));
-                    } else {
-                        &NomoValue::Undefined
-                    }
-                };
+            Instruction::LoadFromContextToSlot { name, slot } => {
+                let value = scopes
+                    .get_scoped(name)
+                    .ok_or(EvaluationError::UnknownVariable(name.clone()))?;
 
                 scopes.insert_into_slot(*slot, value.clone());
             }
             Instruction::EmitFromSlot { slot } => {
-                let value = scopes.get(slot);
-                let value = if let Some(value) = value.try_to_string() {
-                    value
-                } else if matches!(value, NomoValue::Undefined) {
-                    String::new()
-                } else {
-                    panic!("Unknown variable");
-                };
+                let value = scopes.get(slot).try_to_string().unwrap();
 
                 output.push_str(&value);
             }
@@ -305,26 +286,4 @@ mod tests {
         )
         "#);
     }
-
-    #[test]
-    fn check_conditional_access() {
-        let input = "Hello {{= unknown? }}";
-
-        let parsed = crate::lexer::parse(input.into()).unwrap();
-
-        let ast = crate::parser::parse(parsed.tokens()).unwrap();
-
-        let emit = crate::compiler::emit_machine(ast);
-
-        let context = Context::new();
-        let function_map = FunctionMap::default();
-
-        let output = execute(&function_map, &emit, &context);
-
-        insta::assert_debug_snapshot!(output, @r#"
-        Ok(
-            "Hello ",
-        )
-        "#);
-    }
 }
diff --git a/src/lexer/mod.rs b/src/lexer/mod.rs
index 6fb66a2..a35e096 100644
--- a/src/lexer/mod.rs
+++ b/src/lexer/mod.rs
@@ -238,7 +238,6 @@ pub enum TokenOperator {
     GreaterOrEqual,
     Lesser,
     LesserOrEqual,
-    QuestionMark,
 }
 
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
@@ -568,7 +567,6 @@ fn parse_operator<'input>(input: &mut Input<'input>) -> PResult<'input, Template
                 "=".value(TokenOperator::Equal),
                 cut_err(fail),
             )),
-            '?' => empty.value(TokenOperator::QuestionMark),
             _ => fail,
         },
     )
@@ -606,7 +604,6 @@ fn ident_terminator_check<'input>(input: &mut Input<'input>) -> PResult<'input,
 fn ident_terminator<'input>(input: &mut Input<'input>) -> PResult<'input, ()> {
     alt((
         eof.void(),
-        parse_operator.void(),
         one_of(('{', '}')).void(),
         one_of(('(', ',', ')')).void(),
         one_of((' ', '\t', '\r', '\n')).void(),
@@ -908,26 +905,4 @@ mod tests {
         )
         "#);
     }
-
-    #[test]
-    fn parse_question_mark() {
-        let input = "{{= foo? }}";
-        let output = parse(input.into());
-
-        insta::assert_debug_snapshot!(output, @r#"
-        Ok(
-            ParsedTemplate {
-                tokens: [
-                    [LeftDelim]"{{" (0..2),
-                    [WantsOutput]"=" (2..3),
-                    [Whitespace]" " (3..4),
-                    [Ident]"foo" (4..7),
-                    [Operator(QuestionMark)]"?" (7..8),
-                    [Whitespace]" " (8..9),
-                    [RightDelim]"}}" (9..11),
-                ],
-            },
-        )
-        "#);
-    }
 }
diff --git a/src/parser/mod.rs b/src/parser/mod.rs
index d45eea7..ed4456f 100644
--- a/src/parser/mod.rs
+++ b/src/parser/mod.rs
@@ -2,13 +2,11 @@ use thiserror::Error;
 use winnow::Parser;
 use winnow::RecoverableParser;
 use winnow::combinator::Infix::Left;
-use winnow::combinator::Postfix;
 use winnow::combinator::alt;
 use winnow::combinator::cut_err;
 use winnow::combinator::delimited;
 use winnow::combinator::dispatch;
 use winnow::combinator::expression;
-use winnow::combinator::fail;
 use winnow::combinator::not;
 use winnow::combinator::opt;
 use winnow::combinator::peek;
@@ -250,7 +248,6 @@ pub enum TemplateAstExpr<'input> {
         value_expression: Box<TemplateAstExpr<'input>>,
     },
     ForElse,
-    ConditionalAccess(TemplateToken),
     VariableAccess(TemplateToken),
     IfConditional {
         expression: Box<TemplateAstExpr<'input>>,
@@ -688,9 +685,8 @@ fn parse_expression<'input>(
                         op: TokenOperator::$val,
                         lhs: Box::new(lhs),
                         rhs: Box::new(rhs)
-                    })),
-                )*
-                _ => fail
+                    }))
+                ),*
             }
         };
     }
@@ -711,16 +707,6 @@ fn parse_expression<'input>(
                 Left Lesser => 15,
                 Left LesserOrEqual => 15,
             ]
-        }).postfix(dispatch! { surrounded(ws, parse_operator);
-            TokenOperator::QuestionMark => Postfix(22, |input, rhs| {
-                match rhs {
-                    TemplateAstExpr::VariableAccess(access) => Ok(TemplateAstExpr::ConditionalAccess(access)),
-                    _ => Err(AstError::from_input(input)),
-                }
-
-
-            }),
-            _ => fail
         }),
     )
     .parse_next(input)
@@ -751,7 +737,6 @@ mod tests {
     use winnow::combinator::fail;
     use winnow::stream::TokenSlice;
 
-    use crate::lexer::TokenKind;
     use crate::parser::AstError;
     use crate::parser::AstFailure;
     use crate::parser::TemplateAst;
@@ -759,6 +744,7 @@ mod tests {
     use crate::parser::parse;
     use crate::parser::parse_block;
     use crate::parser::parse_end;
+    use crate::lexer::TokenKind;
 
     fn panic_pretty<'a>(
         input: &'_ str,
@@ -1060,15 +1046,4 @@ mod tests {
 
         insta::assert_debug_snapshot!(ast);
     }
-
-    #[test]
-    fn check_conditional_access() {
-        let input = "{{= foo? }}";
-
-        let parsed = crate::lexer::parse(input.into()).unwrap();
-
-        let ast = panic_pretty(input, parse(parsed.tokens()));
-
-        insta::assert_debug_snapshot!(ast);
-    }
 }
diff --git a/src/parser/snapshots/nomo__parser__tests__check_conditional_access.snap b/src/parser/snapshots/nomo__parser__tests__check_conditional_access.snap
deleted file mode 100644
index f575f85..0000000
--- a/src/parser/snapshots/nomo__parser__tests__check_conditional_access.snap
+++ /dev/null
@@ -1,15 +0,0 @@
----
-source: src/parser/mod.rs
-expression: ast
----
-TemplateAst {
-    root: [
-        Interpolation {
-            prev_whitespace_content: None,
-            expression: ConditionalAccess(
-                [Ident]"foo" (4..7),
-            ),
-            post_whitespace_content: None,
-        },
-    ],
-}
diff --git a/src/value.rs b/src/value.rs
index c587f82..2d70084 100644
--- a/src/value.rs
+++ b/src/value.rs
@@ -31,7 +31,6 @@ pub enum NomoValue {
     Iterator {
         value: Box<dyn CloneIterator<Item = NomoValue>>,
     },
-    Undefined,
 }
 
 impl NomoValue {
@@ -242,7 +241,6 @@ impl NomoValue {
             NomoValue::SignedInteger { value } => Some(value.to_string()),
             NomoValue::Float { value } => Some(value.to_string()),
             NomoValue::Iterator { .. } => None,
-            NomoValue::Undefined => None,
         }
     }
 }
@@ -283,7 +281,6 @@ impl std::fmt::Debug for NomoValue {
                 .debug_struct("Iterator")
                 .field("value", &"Iterator")
                 .finish(),
-            Self::Undefined => f.debug_tuple("Undefined").finish(),
         }
     }
 }
diff --git a/tests/cases/condition.3-instructions.snap b/tests/cases/condition.3-instructions.snap
index 50c3a5f..a317547 100644
--- a/tests/cases/condition.3-instructions.snap
+++ b/tests/cases/condition.3-instructions.snap
@@ -22,7 +22,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 1,
             },
-            fail_on_not_found: true,
         },
         JumpIfNotTrue {
             emit_slot: VariableSlot {
@@ -57,7 +56,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 3,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
diff --git a/tests/cases/identifiers.3-instructions.snap b/tests/cases/identifiers.3-instructions.snap
index 6d13773..f3d8ddc 100644
--- a/tests/cases/identifiers.3-instructions.snap
+++ b/tests/cases/identifiers.3-instructions.snap
@@ -4,12 +4,12 @@ expression: emit
 info:
   input: "{{= _name }}\n{{= a_name }}\n{{= name }}\n{{= _name1 }}\n{{= _namE }}\n{{= name1 }}"
   context:
-    a_name: Foo
-    _name: Foo
-    _name1: Foo
-    _namE: Foo
     name1: Foo
+    _name: Foo
+    _namE: Foo
+    a_name: Foo
     name: Foo
+    _name1: Foo
 ---
 VMInstructions {
     labels: {},
@@ -19,7 +19,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 0,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
@@ -34,7 +33,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 1,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
@@ -49,7 +47,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 2,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
@@ -64,7 +61,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 3,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
@@ -79,7 +75,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 4,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
@@ -94,7 +89,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 5,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
diff --git a/tests/cases/if_else_if.3-instructions.snap b/tests/cases/if_else_if.3-instructions.snap
index 338a105..5504ab9 100644
--- a/tests/cases/if_else_if.3-instructions.snap
+++ b/tests/cases/if_else_if.3-instructions.snap
@@ -26,7 +26,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 1,
             },
-            fail_on_not_found: true,
         },
         JumpIfNotTrue {
             emit_slot: VariableSlot {
@@ -58,7 +57,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 3,
             },
-            fail_on_not_found: true,
         },
         JumpIfNotTrue {
             emit_slot: VariableSlot {
diff --git a/tests/cases/interpolation.3-instructions.snap b/tests/cases/interpolation.3-instructions.snap
index 4465366..c47d18a 100644
--- a/tests/cases/interpolation.3-instructions.snap
+++ b/tests/cases/interpolation.3-instructions.snap
@@ -20,7 +20,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 0,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
diff --git a/tests/cases/multiple.3-instructions.snap b/tests/cases/multiple.3-instructions.snap
index 2b475e7..ef538c1 100644
--- a/tests/cases/multiple.3-instructions.snap
+++ b/tests/cases/multiple.3-instructions.snap
@@ -21,7 +21,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 0,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
@@ -36,7 +35,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 1,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
diff --git a/tests/cases/simple_for.3-instructions.snap b/tests/cases/simple_for.3-instructions.snap
index 415d516..f082c47 100644
--- a/tests/cases/simple_for.3-instructions.snap
+++ b/tests/cases/simple_for.3-instructions.snap
@@ -39,7 +39,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 4,
             },
-            fail_on_not_found: true,
         },
         CreateIteratorFromSlotToSlot {
             iterator_slot: VariableSlot {
@@ -79,7 +78,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 6,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
@@ -106,7 +104,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 11,
             },
-            fail_on_not_found: true,
         },
         CreateIteratorFromSlotToSlot {
             iterator_slot: VariableSlot {
@@ -146,7 +143,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 13,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {
diff --git a/tests/cases/trim_whitespace.3-instructions.snap b/tests/cases/trim_whitespace.3-instructions.snap
index f484bbf..31112d0 100644
--- a/tests/cases/trim_whitespace.3-instructions.snap
+++ b/tests/cases/trim_whitespace.3-instructions.snap
@@ -4,8 +4,8 @@ expression: emit
 info:
   input: "{{ if test -}}\n    Hello {{= stuff -}}\n{{- end }}"
   context:
-    test: true
     stuff: Hemera
+    test: true
 ---
 VMInstructions {
     labels: {
@@ -22,7 +22,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 1,
             },
-            fail_on_not_found: true,
         },
         JumpIfNotTrue {
             emit_slot: VariableSlot {
@@ -43,7 +42,6 @@ VMInstructions {
             slot: VariableSlot {
                 index: 3,
             },
-            fail_on_not_found: true,
         },
         EmitFromSlot {
             slot: VariableSlot {