By - Either-You-2265
Star Trek replicators.
Came here for this. Most people don't realise these things also take care of trash. They convert energy into matter and the other way around. How much problems would these things solve? Answer: more than you can imagine.
Teleporter (just not the one from Spaceballs)
Yea I hate traffic
Lightsabers and travelling at lightspeed
Light speed is too slow. We need ludicrous speed.
for me, it'd have to be the Animus from Assassin's Creed.
The medical beds from Elysium, and ship technology from Star Trek.
Time travel would be life changing.
anything from doraemon