You are getting it backwards.

Do you know always who is on the other side of a purchase that you do online? I can bet you don't, yet you still do business because you trust the intermediary (credit card provider, Amazon, whoever) to ensure that both parties are getting what they want.

Blockchain and "trustless" systems are there for people who want to make business but do not have these intermediaries, or when the intermediaries themselves are not trustworthy (corrupt governments, inefficient companies, etc).

It is fine to buy a few things from an untrusted supplier off Amazon. It is a whole other issue to run production based on unreliable or untrusted suppliers. I have yet to ever see a company serious about production that would do this.

Are you in production? Or just think this is a good idea?

Until 2017, I haven't seen anyone that could raise capital from total strangers and start a company. In 2019 I was working at one of the many companies that did just that.

Until last year, I haven't seen anyone so investing in derivatives without a bunch of capital and access to a reliable brokerage. Today, you can do it without even having a bank account on your name.

> Are you in production? Or just think this is a good idea?

I am not in production, but the thought of creating business and opportunities that do not require trust between parties seems amazing to me.

It isn't. One of the reasons why e.g. the stock market is so huge is that participants rarely need to trust each other as the guarantees are provided elsewhere. Imagine if every buyer had to trust every seller (and vice versa) on every transaction.

Because they trust the exchange who does more than blockchain though. That example seems off.

..And here you can trust the blockchain instead of the other party.

I don't think Blockchain provides what an exchange provides.