That's the future of savings plans right there.
As someone who retired early entirely off Bitcoin a few years ago, I approve this strategy!
Fun side note, I was talking to someone at the dog park yesterday who I had never met and I mentioned I retired early and he was like "oh you must have that bitcoin money", and I was like oh wow yes actually that's exactly it I retired off of Bitcoin. I like when people I meet recognize the wealth creation power of Bitcoin without me even prompting them!