Human culture boasts a storied history of bad ideas, of which there are true gems and many favorites. Filling the Hindenburg with hydrogen, there’s one. Napoleon invading Russia in winter. It’s probably a bad idea to do anything in Russia in winter, but in particular don’t walk an army across it when winter is coming. A little foresight might have helped there. Communication. NASA didn’t communicate with Lockheed Martin enough and lost a Mars orbiter because half the team used metric and the other half imperial. That expensive cutting edge engineering and science is out there in space even now, floating around god knows where. That’s more of a blunder than a bad idea, but it’s a bad idea not to check with each other, hey what measurement system are you using? Takes no time. The French didn’t check first either. You need to check first before building a nice roomy expensive super train. Don’t … More