How do I time travel?

There are two abilities related to time travel in a recent update to Burrito Bison. Their descriptions read:

  1. Time travel to unlock this upgrade
  2. Reach rift level 18 then time travel to unlock

Locked time travel abilities

How do I time travel?


According to a tweet by juicybeast, it is bugged, don't worry about it until the next update:

Coelasquid

Part of me is wondering if you unlock this by resetting your save data... @juicybeast please stop me from making a terrible mistake

Juicy Beast

@Coelasquid Don't! Working a patch for this asap. Just ignore it until then ;)