Little Ways The World Works


This post is by Collab Fund from Collab Fund


If you find something that is true in more than one field, you’ve probably uncovered something particularly important. The more fields it shows up in, the more likely it is to be a fundamental and recurring driver of how the world works.

Take two topics that seemingly have nothing to do with each other: goldfish and tech companies.

Take two groups of identical baby fish. Put one in abnormally cold water; the other in abnormally warm water. The fish living in cold water will grow slower than normal, while those in warm water will grow faster than normal.

Put both groups back in regular temperature water and they’ll eventually converge to become normal, full-sized adults.

Then the magic happens.

Fish with slowed-down growth in their early days go on to live 30% longer than average. Those with artificial super-charged growth early on die 15% earlier than average.

That’s what biologists from University of Glasgow found.

The cause isn’t complicated. Super-charged growth can cause permanent tissue damage and “may only be achieved by diversion of resources away from maintenance and repair of damaged biomolecules.” Slowed-down growth does the opposite, “allowing an increased allocation to maintenance and repair.”

“You might well expect a machine built in haste to fail quicker than one put together carefully and methodically, and our study suggests that this may be true for bodies too,” one of the researchers wrote.

The same thing has been found in humans. And in birds. And in rats.

And (Read more...)