everyone saying to build on the side probably hasn't built or shipped anything on the side. building on the side:
- hard to think deeply or carve out deep work for side project when work + life keeps interrupting
- hard to make progress if project is ambitious given time constraints
- enthusiasm can fade due to interruptions
if you have a very high conviction and high savings, the best would be to jump into it. the thing with leaving your job is you can always find another one