> I don't understand what problem email can solve that mail cannot.

I think it's a wrong example. Email provides light-speed delivery, dirt-cheap cost, and brain-dead convenience on top of also being able to mail. So email actually never competed with mail.

Web3 is yet to strike any decisive blow against today's web (or it may never). It's more like another part of the web.

> Transferring money was in seconds, compared to Fidelity/Venmo which took 3 days!!! - Very easy to loan money against crypto holdings vs stocks - ResearchDao's like ResearchHub

For a smaller amount of money (<$100k), banks already can transfer money within seconds. I've seen people sending $1Ms only using their phones, but, IIRC, you need a good record to do that.

"Email provides light-speed delivery, dirt-cheap cost, and brain-dead convenience on top of also being able to mail. So email actually never competed with mail"

These advantages are obvious now. See: https://www.youtube.com/watch?v=gipL_CEw-fk . My point being that blockchain does offer some new capabilities that were hard to build before. We maybe oblivious in what applications that may unlock.

Regarding money transfer, I know the technology exists, but all providers don't built it. That is native technology in blockchain.

Here in the NL, we’ve been able to send money for free to each other instantly, for at least half a decade. We use apps like Tikkie to mask each other’s bank account numbers and automate some of the book keeping for many transactions, but we don’t technically need the app in the first place.

The US is very slow to move money, I still dread any time I have to use my old US bank accounts to get things done.

> Transferring money was in seconds, compared to Fidelity/Venmo which took 3 days!!!

This is a problem that can be solved sans web3.

Transferring money is faster if you pay a fee.

You’re paying fees to transfer crypto.

That said, it’s free and instant with services like Zelle.

PayPal offers instant transfers in my experiences. Use it multiple times per week and have done for many years.