Eli5 why no big Insects?

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Okay so I’m sure if you’ve read in history that sometime around Jurassic age that insects were like stupidly big due to O2 saturated environments. why can’t we manufacture an enclosed space with gradually increasing oxygen saturation over a few generations and see how big we can get insects?

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>why can’t we manufacture an enclosed space with gradually increasing oxygen saturation over a few generations and see how big we can get insects?

As the other comment says, it’s been done on a small scale in an experiment by some researchers.

But remember, to do this stuff you need money. You need a scientist to manage the project, you need a large, mostly airtight chamber, you need lots of oxygen to supplement the oxygen levels. And if you want to give insects a chance to evolve bigger to take advantage of high oxygen, you need to keep all this going for several years at least.

And somebody’s gotta pay for all that. Competition for grant money is fierce, and for some inexplicable reason billionaires don’t fund this kind of stuff as a side project (I totally would if I was rich). So a lot of time when you ask “why doesn’t someone try this cool experiment” the answer is “nobody volunteered to pay for it”

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