support for validity rollups can be done with a soft fork, not a hard fork.

I don't consider bitcoin to be perfect. example areas for improvement: privacy is inherently broken, can't fix it without a better protocol like zerocash. and scaling to the billions of people and machines who could be using bitcoin currently isn't possible without trusted third parties such as federated or centralized custodians.

validity rollups enable us to make significant progress toward solving these problems.