Just in time for lots of jobs to go fully remote so you can do this without lots of complicated or risky steps. I hope lots of people try it!
E.g. asking existing employers to step down to part time or going on contract while taking on part time contracts elsewhere. When I took my first contract (currently back on full time), I took a 40% contract and negotiated with my then-boss to step down to 60%, which let me build up a bigger cushion first before I went onto contracting full time.
Critical that people don't underestimate the multiple they should be asking for, though, and actually set aside enough money and ensure they're properly insured etc.