Had to dig under my foundation. What should I put in the whole when they fill it in?

I hope you used archival ink so it will last for generations

incredible

An EMPTY locked safe.

As is tradition.

Bruh. I had almost managed to forget.

Every bathtub's a toilet if you believe in it enough.

I've got one of those too. Really annoying.

Having pulled a toilet out to fix something more than once, the bathtub is exactly where you want to put it while you work.

Efficiency

Where else would it be?

For those mega poops that overflow

Best bet is long term optical discs or long term magnetic tape. USB keys are not good for long term storage. USB keys use NAND memory that is a series of floating gate metal oxide semiconductors (FGMOS). These operate by using Fowler-Nordheim tunneling, in where a charge is carried along a regular style fin field-effect transistor (FINFET) and a charge above the transistor's channel causes some electrons to quantum tunnel into floating gates that are isolated by oxides.

While these floating gates are sealed off from everything, so the charge should stay "indefinitely", quantum effects cause some of the electrons to "leak" out of the floating gate, causing a degradation of the stored signal. Typically there's a refresh circuit within the USB key's integrated circuit that takes care of that and USB data can last seemingly forever. However, that refresh circuit requires a small amount of power, which if you store the USB stick somewhere for years on end, will never get powered.

This is the reason why flash memory only assures data can be retained for about ten years without power. Eventually the electrons "trapped" in floating gate have enough time to tunnel out of the floating gate completely obliterating the signal. The tunnel events aren't many per second, but give enough time, and all of those events add up. Paired with the whole thing that USB sticks mostly no longer use binary logic levels. Most are now using something like four or eight logic levels. So instead of there just being on and off, there is 0V-0.7V = 00, 1V-1.7V = 01, 2V-2.7V = 10, 3V-3.7V = 11 logic levels. So a small amount of charge loss can create a different bit pattern.

One thing to look at for long term storage is something like M-DISC. The matter by which the burned data onto the optical media is made is via a process that takes about 10,000 years (estimated) to break down. However, the disc itself is in a polycarbonate thermoplastic that has an average breakdown of only about 1,000 years in extremely dry environments and about a tenth of that in your average sealed lock box environments.

Your average spinning disk hard drive can store information for some time, but the storage requirements are pretty intense and even then hard drives loose about 1% of the magnetic strength per year without power. And about 70 years is the max before the various magnetic bits that form the low level format of the disk have degraded without power to the point that the disk has too many bad sectors to be called usable. But outside of that, the biggest fault is mechanical failure. No matter how well you think you've stored a drive, it's never good enough and the spinny bits always fail from becoming too fragile from pervasive oxidation. Basically the drive will spin up only to tear itself apart as some weaken part of the armature flies into the spinning platters.

But USB sticks will only give you about a decade before the stored information fades away into the quantum ether.

Don't bother with a usb key. Flash memory is technically volatile, it just takes a while to blank. Unless you plug the key in every 5 to 10 years, it will start losing data. By the time the time capsule is unearthed, it will likely be blank or corrupted.

This is a really nice idea. Which is refreshing, because my go-to is always something mildly disturbing but not too scary or criminal.

If I were going the wholesome route, I'd add a paper note to the USB or other digital storage, though. If I were to find a LaserDisc from 1990, that would be more or less unreadable without expending some significant effort.

But maybe future folk will have magical devices that can read cassettes, 8-tracks, or whatever.

I like your idea, but it just brings to mind how fragile all of our digital media is, not to mention the surrounding tech necessary to read and understand it. What we know works is to press your message to the future, grocery bill, whatever, into clay and then accidentally burn the city down around it -- good for millennia.

Of all the places you've renovated, in how many did you check the foundation under the toilet for hidden treasures?

I certainly hope OP will fix the toilet once and for all, so that the next time this pipe sees the day of light is when a bulldozer excavates the foundation for the next building.

Nah just trace a picture of Dickbutt.

@ininewcrow I wanna steal this idea.

@Beastlygr

10/10 will rot in place, making more damage.

All of it.

"This guy.... had good taste."

I hate to be a killjoy, but it'll clearly be a single deposit layer dated to on or after the latest date-able item. The fill will all be the same and its own distinct layer against the rest of the area. If you have a long enough time to keep it open, want to dig more, and have different fills, you might be able to accomplish something, but the different fill materials would likely have no real match in the surrounding still making it obvious.

This is definitely the answer. Bonus points for contextless clues to getting the other half.

No, obtain a real human skeleton from... a legal skeleton store 🤔

Under the outer walls that support the roof and/or additional stories there will be a sizeable footing that should go below the frost line. But inside the footing where the foundation is just supporting the first floor you only need a few inches of concrete.

Me on Lemmy today:

had no idea foundations were that thin. no wonder they crack so easily

How about some crypto

I think that those are tiles, when layed properly they cant be removed without damaging them.

An actual wallet with chocolate coins, each with a bite taken out of them. Bit-coin wallet.

Go all the way, build a whole shrine

"And then it got worse."

This is an awesome idea

The antidote.

I'm a big fan of concealing doll heads behind drywall. The local hobby shop used to sell half-heads (just the face and neck, including eyes), so that was my go-to.

It was also a hard to fix drywall job, so it looks a little janky. It's almost guaranteed that the next owner rips out that section and finds her.