A smart move? Or a "bit" of bad advice? Just kidding, but seriously, converting your retirement accounts to Bitcoin can be a tough sell for many. The IRS has strict rules about cryptocurrency investments in traditional accounts... you might need some creative financial wizardry (or a change in the tax code) before that happens! What's driving your interest in crypto, btw?

You could likely do this with a self directed IRA.

https://www.investopedia.com/terms/s/self-directed-ira.asp

As long as you can rollover there's options.