<prompt> Human: Besides the typical answer of, anything is possible in the future! is there anyone that knows the legal side of this question? I currently do 5050 traditionalRoth contributions, to reduce any risk of this in the future, but if someone could ensure that it would be impossible legally for our government to choose to tax everyones Roth accounts in the future, Id invest 100 into my Roth.Thanks!  <response>: Anything can happen. But the chance that they go back and retroactively change how Roth accounts work is as close to nil as youre going to get.If Roths became unwanted for whatever reason, they would just limitstop them going forward, rather than invalidating all the ones that existed. 