How to Make RAM Mutable

If you need something to be mutable, you can make it that way. It definitely pushes you towards immutability, but doesn't force it on you. I think this goes beyond just language design as well. Whenever you want to have like a sane default for everyone, and like an escape hatch to the more sort of unsafe world,. You can also be like, here are all the features you can use any ones that you like and make your own subset of the ones that you consider safe.