>For an initial experiment this is actually fine. You first want to check that the effect on the individual is beneficial and people don't just stop contributin

>For an initial experiment this is actually fine. You first want to check that the effect on the individual is beneficial and people don't just stop contributing to society. Is it though? With the knowledge that it will be over in 2 years you get a different sort of behavior then if it actually functioned as a guaranteed support net. I would have found it much more interesting, if it supported people 10 year from retirement for those 10 years. They could just stop everything and dont have to care for after the project ends.