科技回声

> Cryptocurrencies like Bitcoin are already trustless – any machine can accept it from any other, securely. They are (nearly) free.<p>I believe it currently costs ~$1.50 in fees for a single Bitcoin transaction, assuming you want it confirmed reasonably quickly. Not what I would call nearly free!

What I would like to see is an openly federated payments network that functions more like the Internet (and runs on top of the Internet):<p><a href="https://interledger.org/" rel="nofollow">https://interledger.org/</a>

It's in the app layer, we dont need a "fifth" layer.

I can't see how this squares with the scalability problems of proof-of-work systems.<p>Given the big problems with these limits currently happening with bitcoin, this seems impossible to use in a high bandwidth system. Already bitcoin transactions are shockingly expensive, with the bulk of the cost hidden from the user by the payout of coins to the miners.

Basically still correct it's just taken longer to get scaling solutions like SegWit/Lightning into production. One the Lightning Network is up you just pay one BTC transaction to establish a channel with the network, then all subsequent LN transactions are cheap and instantaneous.

This sounded like a good idea, until I remembered most spam bandwidth was stolen.

I agree with the part where he calls cryptocurrencies a religion.

Of course there will be DOS attacks on the currency protocol too... unless we design it just so.

Do we have a week of cryptocurrencies on HN?