* point 4 from the post is "Most people don’t want to go to work. They just don’t know what else to do."
* your question above is "what should one do other than work?"
One interpretation of point 4 from the linked article could be phrased as "Nobody really knows what they would even do with their life without work". What if the points in the article are considered as an aspiration or future state rather than something you manifest immediately _right now_?
You can change your mind in an instant and commit to either generating cash flow from a business or real estate, or more passive income via investments in financial securities like stocks and bonds.
While the mindset change is a prerequisite, action and compounding take time. You can live the ideas behind principles of the points today in an instant, but it may take many years to actually realize the actual state described in the article.
There are many resources that seem to mix in with the career/finance/income points made in the article. For example, in the US-centric book "Set For Life" Scott Trench advances the theory that one should:
* build a $25k buffer/fund
* use that safety net to take swings at cashflow opportunities
While I don't really even subscribe to that, there are many, many avenues that have worked for different people. It's probably worth exploring which one appeals the most to you if you'd like that sort of radical change.
Even investing a salary towards FIRE goals is a HUGE mental leap vs. the status quo if taken seriously.
It's not ironic at all. There's plenty of stuff I'd rather do. The question is how does one support themself.
"You can change your mind in an instant and commit to either generating cash flow from a business or real estate, or more passive income via investments in financial securities like stocks and bonds."
Generally requiring significant capital. The question is how does one secure that capital without work.