The feasibility of buying 292 million tickets (as you mention) is a key barrier: many lotteries (Powerball included) explicitly and deliberately require that tickets must be bought in person. So, just as a matter of time constraints, you&#x27;d need a (nontrivial) army.<p><i>Rough</i> ballpark: 300 million combos - let&#x27;s say you buy 6000 tickets&#x2F;hour (which I think is actually optimistic probably by a full order of magnitude), for 25 hours a day (assume shifts and magic days), you&#x27;re still looking at 2,000 person-days.