The Autobiographer's Paradox

A philosopher decides to write his autobiography. After three years, he submits a manuscript of exactly one page. His editor is furious: 'Where's the rest? Your childhood? Your education? Your career?' The philosopher shrugs: 'I examined each memory and realized I couldn't verify any of them independently. My childhood might be a false memory. My degrees could be hallucinations. My career is just other people's opinions. The only thing I can confirm with certainty is this sentence: I am currently writing.' The editor pauses. 'And the title?' 'I Think, Therefore I Might Have Been.'