system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: When I drift into a deep thought while driving, and I finally snap out of it... How did I make all those stops and turns and not really remember doing any of it?
gpt
It's got something to do with how our long term memory works.

Whenever we experience something new our short term memory of that event winds up copied in the long term memory.

The more significant the event the more copies are made.

Likewise when you experience something you've already experience before, like driving to/from work your brain judges it to be insufficiently diffrent to commit it to long term memory. So you just wind up forgetting what you did.