I mean, I found 10 used wallets not within 1000 pages of the first nor last page of his website in roughly 5 minutes.
I’m fully aware behind the math of finding a wallet actually holding anything… but I was fairly weirded out to come across 10 wallets that quickly. Most had their last txn out roughly 2019.
I've noticed that there are a few hardcoded ones on the final page, where the account exists and the key is wrong.
I'd say odds are that the website is wrong, but you can always load those keys in a wallet and see if they give you control over the actual address.
If that works, I'd assume it's the case that some people have used weak keys (for example, a popular Ethereum wallet would actually generate 256 bits of entropy but accidentally truncate it to 32 bits in an operation), and any funds in those wallets will have been snagged long ago.
Point being: generate a private key properly, and no one will ever find it.
EDIT: I realize this is another page then the one I've seen previously, but I think the same idea applies. That one had support for Ethereum, too, and on the final page was an account with a balance.
You didn’t come upon those wallets by chance. Whatever rules the site uses to order wallets isn’t unique and some other (insecure) wallet generator uses the same technique.
That or someone is actually using the site to come up with wallet keys.
So not random at all, other people had exactly the same idea as you and picked the same numbers. I would have been more surprised to see zero traffic at those addresses to be honest.
By many orders of magnitude, I think. There are only estimated to be 10^24 or so stars, which is a lot less than 2^256, right. Astronomical is not in the same league.
There are an estimated 10^80 fundamental particles (quarks, electrons, photons... mostly photons) in the observable universe, which is pretty close to 2^256 as these things go. "Cosmological" doesn't have quite the same ring to it though.
Even if we measure the widest distance (width of the known universe) by the smallest unit (planck length), we only get to 10^61, which is still 16 orders of magnitude away.
Find the key in no time, but how much time for the information to reach us? If it's a cube close by, then great, but most of them would still be millions of light years away.