GridVids

Sleep timer

Choose when playback should stop.

Sign in with YouTube

What if you floated upwards 1ft per second?

xkcd's What If? Oct 20, 2026 17:00
Create an account to hide videos, mark them watched, or save them to Don't Miss.
Don't Miss
Create an account to hide videos, mark them watched, or save them to Don't Miss.
Mark watched
Create an account to hide videos, mark them watched, or save them to Don't Miss.
Hide
Open in popup Open on YouTube
Share video

Share video

Copy the GridVids link or iframe code.

Video link
Iframe code
Iframe content

Watch more
Please send us a postcard from Proxima Centauri! ©2026 xkcd, inc.
Science & Technology