i dont understand why bitcoin has to be just base on people perceive value of it. and for someone to just artrarily fix the supply of them at 21 million doesn't make any sense.
Because one component of money is being a store of value, and for this it needs relative scarcity compared to other goods. Money that isn’t scarce just looses more and more value over time, everything around you gets more expensive and your money worth less, a bad situation to be in.
it should be able to contract and expand the # of bitcoins in existence.
Humans are too bad at predicting the future to be able to handle this correctly. We see it right now, where inflation gets out of hand and all they can do is manipulate statistics, so it looks better than it actually is, instead of actually fighting inflation. The problem is human decision making will mess the supply up, so a fixed one is better, apart from also making it a better store of value.
but because bitcoin is design very simplistically it is kind of like monopoly money. not backed up by anything.
This is a feature not a bug, it might sound unintuitive at first, but being backed up by an inferior form of money is a disadvantage. It doesn’t bring any benefits, and no one would need have the need to use the currency that needs backing, because they could just use the asset that it’s backed by directly. Why buy a crypto that’s backed by gold, instead of buying gold directly, it just doesn’t make sense. I say this overly simplistic to get the point across, because there’s reasons why gold fails as a medium of exchange, most people use crypto as a store of value at the moment, that’s why i won’t get in deeper now.
Bitcoin is something complete in itself, it doesn’t need other bs that’s inferior to it.
i'm not saying bitcoin doesn't do that. but bitcoin has weaknesses. you can't deny that. the main weakness being that it is not backed up by something like gold. gold could then be used to measure the value of bitcoin. and gold has real world use. people wear it. it gets used in all kinds of electronics. bitcoin doesn't get used anywhere for any purpose. it's just imaginary.
First of all, this is not a weakness, money isn’t an economic resource, it’s there to facilitate trade, it doesn’t make sense to make products out of money.
For the simple reason of fungibility, another function of money, each unit should be exactly the same as the other. This is not the case with jewellery and gold coins, they’re different so they’re desired differently, which is bad for money. No person that used gold as money, will use it to make a product out of it. Even gold coins have different desirabilities depending on when they were made and by who, this is bad for fungibility. Pure money doesn’t need another use to be desirable, just like no football club wouldnt hire messi, because he isn’t good at basketball.
I’ve seen this mixing between money and economic resource many times now, i think some people have a hard time separating this. But don’t forget the market can separate between the two pretty well and made Bitcoin the most successful asset of the last decade(outperformed gold and everything), doesn’t seem like a weakness to me, this wouldn’t be possible by being tied to gold.
Being backed by something also opens up a whole new array of attack vectors and market manipulations, as a side note.