Hold up -

1. Why is this about working more hours, instead of working harder / more effectively? There are 168 hours in a week; even if you don't sleep, you cannot maximize your income beyond about 4x just by working more. I am currently making about 15x the lowest hourly rate I ever worked for, and I'm still fairly early in my career and feel like there's a lot of room for my salary to increase as I become more skilled.

2. I'm reading the discussion was about a tax on wealth, not a tax on income (dwealth/dt). If you're making a decent living and want to make more money so you can spend it on things that are not investments (consumer goods like video games, services like vacation travel/hotels, charity, raising more children, sending them to college), a tax on wealth will not affect you, because your wealth stays right where it is. And doing all that is net-positive for the economy.

'majormajor is clearly talking about wealth in the sense of static assets, not change in assets over time: I'm worried about having a single medical emergency, not having one every year. Make enough for your (static) safety net, then stop making more money.