Because anything of any relevance has already been said.

Buy Litecoin.

I've just added another 20 Litecoin to the pot.
One of us will be right and one of us will be wrong.

Interesting times ahead.

Buy Litecoin.

Blockchain is interesting tech and has applications but I'm not sure currency should be one.

The parallels with tulip mania are clearly there the magnitude is irrelevant. The fact is people have purchased bitcoin for far more than they are worth, which is nothing when you dig down into it. The rate of inflation on this type of currency alone should show its inherent baselessness.

I bought some TRX the other day & I am likely to chuck some cash at XLM too.

The mountains are calling & I must go.

You might want to look at "proof of stake" vs. "proof of work" in crypto contexts. Some cryptocurrencies plan a migratory route from POW to POS. This means mining will essentially be redundant for that particular coin, as you no longer receive your "reward".

One concern I have with Bitcoin and other cryptocurrency is the lack of knowledge and control over who invented it and who potentially has access to the means of creating more Bitcoins or who has some huge cache of them. It could easily be the Russians for all we know or some organisation intent on pervading the global economy or who knows what. If the supply is so unstable then the value of an individual Bitcoin is also unstable and potentially very volatile (dangerous to invest in).

Traditional currencies, while "fiat" currencies so not backed by Gold etc. are ultimately backed by the fact that the government of whatever country accepts (actually demands) them in payment for taxes, and therefore in return for the receipt of public goods/services and membership within society. The purchasing power is also stabilised by the central bank (whatever you might think of it) by carefully altering the supply of currency to avoid over/under demand or supply.

Bitcoin's value is speculative and given you can't pay for taxes with it, it's not particularly useful either, therefore not a good investment.

The underlying technology may well be worth investing in, but not Bitcoins or other cryptocurrencies themselves.

Your point about central banks is misplaced in my opinion. They are merely a tool of government and a modern financial system. The problem lies in politics and not some conspiracy of central banking. The main issue behind the cost of living is housing costs, which are not purely down to monetary policy (even though borrowing may be cheap), but more down to the political choices made over decades, under investment, lack of social housing, poor policy. It's also down to social pressures to own your own home and a consumerist culture.

Borrowing is a good thing when used sensibly as it allows people to smooth spending over their lifetime. This is also true of economies as they can create bonds and borrow money with the expectation of economic growth which will diminish the real value of the debt over time. Global debt nets off to zero so for some it's an investment.

It's not the institution that's wrong it's the way it's used by politicians.