Truth, truthful, truthy
How hard is it to "write the truth"?
In a novel i've been reading, the narrator says, near the beginning, that he can't write the truth, because it keeps changing; he doesn't trust his memory.
There may be many other reasons why telling the truth is difficult, and it may be more difficult about some subjects than others. Can we even know with any degree of certainty whether we're telling the truth?