"has" suggests that something in the past has happened. "in 15 years" suggests something will happen in 15 years.

If a person can't craft a coherent title then I'm not reading the post.

A night mare could only be a horse. This is not a horse.

What is meant by "25% space". It's nonsensical as there is no context. Sounds like it's 75% smaller useful space as compared to older tech. Obviously, that's not it.

We have magnetic levitation. It just doesn't work like you imagine.

Time machines would be mostly used to go back 30 seconds so you could unsay something to your partner.

Similarly, flying cars only need to be able to fly out of a traffic jam. No more worries about zip merging.

Not at all likely.

I used Tegaderm bandages daily for most of the 15 years I was a nurse. The stakes were higher than ripping off some paint. So yes, I do know how this adhesive works.

In practice I find these rip off the paint. I know how to use them. I was a nurse for a good while and the first use for this adhesive was Tegaderm adhesive bandages, 2nd use was Duoderm. Command strips came later.

You stretch them to 3-4 times their natural length and the adhesive releases. Good luck on painted walls though.

A roller tool for putting window screens in aluminum windows works well too. It's concave and matches up with the ethernet cable nicely.

In college I ran speaker wires through the asbestos insulation around the hot water pipes to get to my friends room because he had loaned me all his vinyl. He'd call my room and make requests and I'd turn his speakers on (he could adjust the volume on his end). My last name is Kaup which could be a radio station also so he'd ask seriously as if I was an actual radio station. 1980's so no texting.

So far he's gifted me three cars so it's worked out great for me.

TL;DR Cancer be damned we need some tunes.