The entire world of finance is built upon there being an infinitely increasing supply of people who want to buy in.
You're effectively saying that the global economy is also a scheme. I wouldn't disagree with that, it's just that
what you're describing isn't unique to bitcoin.
Actually, it's the opposite. The economy keeps getting more productive and this has to be countered with inflation to keep prices stable and reward further productivity growth.
Bitcoin and dollars are not comparable. The US government forces you to use dollars under threat of violence. To exist as a legal entity in society you must use dollars, to pay fees, taxes, etc. And if you depend on the government, you must accept dollars.
No one needs to use bitcoin. Its demand is chiefly speculation. It has very little use other than a speculative vehicle.
I disagree 100%. Having a reason for existing is, literally, it's meaning.
Something may become meaningless over time if the landscape changes to undermine the reasons for existence, but that underscores the point that 'reason for existence' is another way of saying 'it means something'.
Bitcoin's reason for existence was the bank bailouts of 2008. It has found supplemental reason in the current economic climate of quantitative easing. That means everything.
"Having a reason for existing doesn't mean anything" is an absurd statement.
