I’m a firm believer that everyone is smart, we just don’t all know the same things. Depending on your profession, your life experiences, and your interests, what you consider obvious might be mind-blowing to someone else. So to celebrate all of the niche information that people have floating around in their brains, one curious Reddit user posed the question, “What fact is common knowledge to people who work in your field but almost unknown to the rest of the population?”
From insight about installing carpets to working as a barista, we hope you’ll learn something from the facts down below. Keep reading to find a conversation between Bored Panda and the man who started this thread in the first place, and be sure to upvote the information you find most fascinating!
#21

When you delete a file from your HD, only the information of how to reach these memory slots coherently is deleted. The raw information remains there until overwriten.
That's why companies (should) destroy their disks on decomission instead of just formatting them.
Report
0points
#22

Neurodegenerative diseases (Alzheimer's,Parkinson,...) starts way before the first symptoms appears.
No one wake up suddenly one day with Alzheimer's. From actual data, it seems that the disease is rampant for 10-15 years before the first symptoms. Some research say that you can start identifying abnormalities 20+ years before the memory loss begin.
And it works for all neurodegenerative diseases AFAIK.
Report
0points
#23

There is a surprising amount of infrastructure under your feet. You’d be surprised how much public utility runs underneath private property. Always call before you dig.
Report
0points
#24

There is no such thing as a perfectly functioning aircraft. Every plane you fly on has a multitude of maintenance issues, just not severe enough to affect safety of flight.
Report
0points
#25

Most 911 calls an ambulance receives on a daily basis are not remotely close to being emergencies.
Report
0points
#26

Heartworms are treatable for dogs, but not for cats.
Also, keep on top of your heartworm prevention for your dog; if they get heartworm but you can prove that they've been continually covered (which isn't difficult; the receipts are good enough, and your vet will have them in their database), then the heartworm prevention manufacturer will pay for the treatment.
Report
0points
#27

Nominal pipe diameters are not indicative of their actual diameter. So a 1" pipe is rarely actually 1" in either outside or inside diameter.
Why? I have no idea. But if you drill a hole of exact diameter and stick that pipe in there, you're going to have a bad time.
Report
0points

