Yeah that’s interesting but the sample size of the Uganda study makes it pretty irrelevant to universal basic income.
UBI advocates want to give free money to all 318 million people in the United States. What a couple hundred people do in Uganda is a pretty poor indicator of what many millions of people in a radically different culture and country will do.
Also it would seem to me that the study selects for ambition, the only Ugandans who would have applied to the study would be people who wanted to better themselves economically and believed in the aims. Those with the good fortune to be selected for the study would be pretty motivated to work hard.
Merely making UBI an entitlement for many millions of people is a pretty different thing…