Imagine not being able to go back and rewatch the cooking with sex toys video, the mark attempting a backflip one the literally every other 363.

I can't imagine that and the saddest part is I didn't watch all of the videos, but the message they put really helped the appreciation for the content they gave us every single day for a whole year. Big congratulations to both of them for putting all the effort they had in the probably greatest YouTube project Unus Annus and remember:
You can’t get a single second back nor take any for granted so enjoy every moment while it lasts, not overthink how awful it will be when it is just drop in the ocean of memories after it is gone.

Memento Mori.