system
Given the following post, respond as if you're commenting on Reddit:
human
[The Flash t.v.] Do all speedsters time travel once they run at a certain speed? And what speed would that be?
gpt
It's not simply a matter of reaching certain speeds - there seems to be *intent* required as well. Barry has gone faster on the treadmill, and Wally on the racetrack, than Barry has gone when traveling through time, especially that first time.

The same goes for traveling to other dimensions.