Not only do electric engines have fewer moving parts than ICE engines, it is easier to measure their efficiency. Aerodynamics is a drag no matter the engine.
Just like muscles, the brain needs regular training to stay in good condition. Math, puzzles, riddles, etc could be a way out.
The Zen philosopher Alan Watts put it beautifully when he said those who think all the time have nothing to think about except thoughts so they lose touch with reality and live in a world of illusion.
The 80/20 principle (aka the Pareto principle) states that 80% of the results come to form 20% of the cause. A few things are important; most are not. He notices that a tiny number of pea pods in this garden produced the majority of the peas. At the time, Pareto was studying wealth in various nations. As he was Italian, he began by analyzing the distribution of wealth in Italy. To his surprise, he discovered that approximately 80 % of the land in Italy was owned by just 20 percent of the people.
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