system
Given the following post, respond as if you're commenting on Reddit:
human
[Rick and Morty] If the Truth Tortoise makes it so that Morty knows everything, then why doesn't he know about Morty's Mindblowers and the fact that Rick was erasing his memories?
gpt
If you truly knew everything, how would you know things you couldn't even conceive of before? Unless something triggered a memory of the knowledge, it would remain buried like a needle in an infinite sized haystack.

After the truth tortoise Morty might have 'known', but he wasn't aware of it even being a thing he could know, so he couldn't recall it and think about it and then remembering, act on that knowledge.