Gutenberg’s press was a huge success because it was used to print indulgences. That I did not know. Here’s more on that.
Fascinating stuff. But I was rather surprised that Mr Walker has made a couple of boo-boos — one rather serious. The connection he made between the enigma machine and the DNA molecule is spurious at best. The bigger problem is with his claim that the energy required to move one MB of data across the internet is equivalent to that in a lump of coal — which I think is patently untrue. Did I make the calculations? No. But my instinct tells me that his estimate is a few orders of magnitude off.
The actual calculation I would do only on request. Thank you and have a nice weekend.