How much national debt is too much?
Most economic textbooks will tell you that there can be real dangers in running up a big national debt. A major concern
The History Of Light (classic)
For thousands of years, getting light was a huge hassle. You had to make candles from scratch. This is not as romantic as it sounds. You had to get a cow, raise the cow, feed the cow, kill the cow, get the fat out of the cow, cook the fat, dip wicks
