Bitcoin Is the New 'Gold'
forbes.com
forbes.com
One could argue that you could use other ways to share the blockchain (radio waves or even sharing physical storage) but how do you settle transactions that way? You'd have to broadcast your transaction somehow, wait for a miner to pick it up, mine it and then broadcast it to the rest of the network and wait for other nodes to see and accept the new block and then build on top of it. Sounds like a nightmare over high latency networks, you could wait for days until you're sure that your transaction is accepted.
What if a certain region is cut off for a while (say, a country)? They'll make transactions, mine them and then when they're reconnected to the rest of the world their block "branch" is immediately overwritten by the outside chain because it had a greater hash rate. Actually for most countries that wouldn't even happen that way because they probably won't have the hash power required to mine a single block in weeks, effectively making Bitcoin unusable.
I don't think Bitcoin would be a very practical currency for Mad Max. Better invest in bottle caps.
Thanks for the chuckle... good way to start off the day!
IF the world economy collapses, bitcoins are useless. The internet would fail, people wouldn't have computers to use them any more. You can't do anything with bitcoins if you don't have a huge network of computers to sustain the system.
To be honest, if your country is conquered, the last thing the winning party wants is a couple of bits and bytes on a hard drive. What's far more valuable is the natural resources, workforce, factories, etc.