A thought experiment is a hypothetical situation in which a hypothesis, theory, or principle is laid out for the purpose of thinking through its consequences.
Johann Witt-Hansen established that Hans Christian Ørsted was the first to use the German term Gedankenexperiment (lit. thought experiment) circa 1812. Ørsted was also the first to use the equivalent term Gedankenversuch in 1820.
Much later, Ernst Mach used the term Gedankenexperiment in a different way, to denote exclusively the imaginary conduct of a real experiment that would be subsequently performed as a real physical experiment by his students. Physical and mental experimentation could then be contrasted: Mach asked his students to provide him with explanations whenever the results from their subsequent, real, physical experiment differed from those of their prior, imaginary experiment.
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https://en.wikipedia.org/wiki/Thought_experiment
You should see what I can do when I'm the Emperor of Earth!
In one of my decrees I ban all motorized transport from traveling at speeds greater than 50 kilometers per hour. This is enforced from my space fortress. For a first time infraction violators are blasted with a headache phaser, which will of course cause terrible headaches for a week or more. Vehicles that repeatedly violate the universal speed limit will be disintegrated as soon as the passengers disembark. Rare exceptions will be made for humanitarian reasons.
How would such slowdown affect energy use, land use, vacation time, etc?
I do think the factory farm dairy industry is in for some rough times. I can easily picture a future where the preferred burger at McDonalds is vegan and that costs a dollar less than an actual meat burger, and school children preferring vegan milks over the real thing.
We always had soy milk in our house when our children were growing up because my wife is lactose intolerant. As teens our children began to prefer the soy milk to regular milk, so I quit buying regular milk. I haven't bought liquid cows milk for many years. I do keep powdered milk around for cooking.
Conservatives always extol the virtues of the free market until it bites their own sacred cows in the ass.