Is It Possible to Be Motionless Relative to the Universe?

It is technically possible to be motionless relative to the stuff in the universe, but nott yes. That wouldn't change like special relativity effects, because those things are still relative to observers and stuff like that. You could e fly out there, go two point one million kilometers per hour in the right direction, and you might achieve a velocity thatd makes you still relative to the entire universe. But we don't ever actually achieve zero velocity relative to the c m b. Interesting, but it is possible, which i think is pretty cool.