Posted by MarkB_MI on January 07, 2018 at 18:00:36 from (174.230.7.237):
In Reply to: Progress in the world posted by rrlund on January 07, 2018 at 08:16:06:
The reality is we only change sources of energy when we have to. Nobody mined coal in Europe until the forests were decimated. Steam locomotives died out because diesels were cheaper to operate.
The cost of renewable energy is falling every year. The day it becomes cheaper to generate a kilowatt of power with solar than with natural gas, we will see a sudden paradigm shift. Until that day, coal and natural gas will dominate power generation. "Progress" is not so much a matter of technology as it is economics. James Watt's steam engine ushered in the industrial revolution not because it was radically new technology (it wasn't) but because it changed the economics of power production. Thomas Newcomen invented the first practical steam engine, not Watt. But Watt's design was much more efficient and history remembers Watt, not Newcomen.
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