Horses are also living creatures capable of feeling pain, fear, fatigue and can also be stubborn or aggressive. Horses also need to be sexed, reared, trained, fed and cared for, you can't simply build more horses on demand or scrap and recycle their parts. It's a silly analogy all around.

> Would Amazon be possible without trucks? How about Walmart?

Not Walmart, but Amazon makes even more sense in a horse-driven economy: First, you don't have to ride to the store and back -- mailing a small item is much cheaper than that. Second, with the price of shipping per mile per pound being higher, there would be more of an incentive to ship items directly from the manufacturer to the consumer. Mail-order catalogs existed before the age of cars.

I think I know where you want to go with this, but I'm not falling for it. Bitcoin is not progress towards the future, but a regression to the past. Pegging our economy to a finite (potentially volatile) asset has led to boom-bust cycles in the past, whether it is physical like gold or digital like Bitcoin.

People crave financial stability. Bitcoin will not give it to them. I'm not averse to the idea of a distributed ledger acting as an underlying settlement mechanism for global finance, but Bitcoin does not achieve that goal either as it's zero sum (whereas economies are actually growing).