system
Given the following post, respond as if you're commenting on Reddit:
human
Could you create a controlled-gravity environment and if you could would it be possible to train in higher levels of gravity and be less affected by Earth's gravity?

So pretty much, can you do what they did in Dragon Ball Z to get stronger?
gpt
You have a few options, all of them ridiculously expensive:

A centrifuge.

A really powerful elevator in a really tall building with good brakes at the top.

A quickly accelerating train.

A quickly rising airplane or rocket ship.