technology improves us

Back in the 1920's adding machines were expensive. They were approx $100 used, and gold was $20 an ounce. Here is an easy rule of thumb for you. OK so price are 100 times more now. That adding machine would cost $10,000 in 2014 money. However, I can get a solar power calculator at the dollar store for one dollar yes. It is a lot smaller and faster and easier.