There is a category of reform that looks obvious in retrospect and was truly difficult to arrive at, and postal payment is a clean example.
The arrangement that preceded it…
There is a tendency to think of agricultural history as a matter of which crops were grown, and the tools receive far less attention than the plants.
That gets the…
Source: Wikipedia
There is a class of invention that is invisible because it is too small to notice, and fastenings are the clearest example on any person's body right now.
The…
There is a particular kind of historical blindness that comes from something becoming cheap.
Salt now costs almost nothing, is available everywhere, and is thought about mainly as a seasoning.…
There is a fact about the past that is difficult to hold onto because it contradicts something we do daily without thinking.
For most of human history, almost nobody had…
Source: Wikipedia
There is a habit of treating zero as obvious, on the reasoning that nothing is a perfectly ordinary thing to have none of.
The difficulty is not the concept…