New time travel rules (contradictions or not)?

[TheDevilsCorpse]

Where exactly it is stated? I don't remember seeing that explanation during the course of the game.

It's established during Trunks' discussion of Parallel Quests.

• "Compared to the Scroll of Endings and Beginnings, the fragments are small and can't directly travel time. So we go to that space with a time machine. The time machines were made with the Time Kaioshin to prevent more timelines from being created. Other Time Patrollers in Toki Toki City all do Parallel Quests. You're chosen by Shenlong, so I'm relying on you to do jobs using scrolls. If you have time, also do PQs. They comes from distortions in history, so many impossible things occur. It may feel scary at times, but it's fun once you get used to it."

[Grimlock]

That explains why I missed it. Thanks a lot, Devils. Do you know if there's more tidbits like that during the game?

[Geekdom101]

The show established back in Z that if you back into the past, and you change something, that timeline splits off and becomes a new one.

But last episode, and in this episode again, Beerus and Whis explained the butterfly effect, alluding that perhaps it will have an effect in the future of the arc. This is a retcon and completely different from how time travel worked before.

Wrong. The butterfly effect has always happened with time travel in the series. When Trunks first travelled to the past, he changed the timeline he arrived in and because of that, everything happened differently. By going back to his with a solution to his problem, he also changed his own timeline from the future it was supposed to have.

This! Yes! Exactly~!

[sintzu]

Beerus and Whis explained the butterfly effect, alluding that perhaps it will have an effect in the future of the arc.

That's exactly what happened when he did it last time, everything about Cell and the entire Buu arc wouldn't have happened if he didn't go back in time and change what he did.