Programming used to be like literacy. Once learned, nobody could take it away. Now the craft comes on lease, metered, and on terms that can change overnight. This essay looks at seven orders of software makers, defined by what the lease did to them. https://t.co/MYx2nZs3kj #Programming #SoftwareDevelopment #TechTrends #Nospecificcountrycodesarementionedinthetweet.