Video Games · 2011
Most test subjects do experience some cognitive deterioration after a few months in suspension. Now you've been under for... quite a lot longer, and it's not out of the question that you might have a very minor case of serious brain damage.
— Wheatley ‧ Portal 2

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Wheatley tries to deliver reassuring information while revealing that the situation is alarming. His hesitations and corrections make the attempted explanation less dependable. The joke comes from a guide who recognises the appropriate reaction only after asking Chell not to have it. This is an excerpt from his longer explanation.
- GamesRadar+Quotation list entry for Portal 2: Wheatley. Literal wording and qualified fictional or written credit; original English edition identified in context.Reference checked
Context reviewed