The answer to why we didn’t develop pretty much any given technology sooner has nothing to do with ignorance or fear but rather the market price of labor.
The answer to why we didn’t develop pretty much any given technology sooner has nothing to do with ignorance or fear but rather the market price of labor.
There was a TV programme about building a Roman villa using traditional methods & materials. They had a big argument caused by the lack of slave labour which meant that they were forced to (covertly) use wheelbarrows, which the Romans didn’t seem to have invented. http://www.thehistoryblog.com/archives/9880
Just like that!