There is absolutely nothing "natural Ponzi-scheme" about cryptos inherently. They're obviously used as pump and dumps all the time but this is not inherent to the technology.

Yeah. barteable goods aren't good currencies, which is why we have currencies for trading rather than bartering as was was done before currencies were created.

Glad you're somewhat familiar with the history of trade.

Hence if currencies die again, cryptocurrency is a viable alternative as a currency, which barter goods are not an adequate replacement for.

considering that the companies that hold and maintain the Internet infrastructure,

Idk, satellites don't really require daily maintenance in a best case scenario, nor do undersea cables, I fully expect the internet to outlive humanity altogether.

unless, that is, you're trying to protect yourself from something so bad the S&P 500 dies, in which case as I explained above and in my previous post, it's down to stuff like hard cash, gold and bartering) and crypto won't actually add any security to a diversified wealth protection portfolio, quite the contrary since it's too infrastructure dependent to work in the worst situations and too volatile

I simply don't agree with any of this whatsoever. Again, gold and bartering won't make good currency, currency is currency - like cryptocurrency or fiat currency - diversifying so not all your currency is directly dependant on the government is pretty sound financial principle. You can invest into gold but in catastrophies your attempt to barter or otherwise liquidate these assets will be troublesome. It just makes sense to me, but I'm not econ or finance, I'm a compsci.

Nevertheless I appreciate your perspective, you've definitely given me some food for thought for hedging my bets in the future.