Did that convince you that you were wrong and I am right? No? Why not? Perhaps because it's not very convincing? Perhaps because I haven't actually said one single useful sentence?
I'd really like to start hearing arguments against (or for) my proposal please just for a change. Preferably from someone with a post count under 1,000.
I had a post count under 1,000 once, but I don't any more. Feel free to check my details though, if you think that I'm some old money dude trying to defend his hoard. I've earned about 125 BTC since I got started, and I've spent about half of that on goods and services, and I've lost a fair chunk more by gambling (both on actual gambling sites, and on the exchanges). Oh, and I'll be spending another 30ish (depending on the exchange rate) in the next week or so, which will leave me nearly bitpennyless.
Every four years a miner needs to exert double the virtual effort to create the same amount of coins,
You are confusing the subsidy (creation) with the reward (income). If this was a paragraph about coin creation, it would be right, in that every 4 years halves the number of coins created. But the rest of the paragraph makes it very clear that you are really thinking of income, and income does not decrease linearly with time the way creation does.
which means he'll be constantly demanding higher prices to compensate for his costs. Which also means that bitcoins won't generally be spendable. Why? Because only an idiot spends a currency which he is certain its price will double within 4 years, effectively granting him about 19% real annual interest--significantly better than any bank or mutual fund.
Linear. You are assuming that the cost of mining pushes the value, and that the value does not push the cost of mining. This is not true. If we ignore all other factors, we end up with something similar to the
Lotka-Volterra equations where the cost of mining and the value of the coins have a complex non-linear effect on each other.
But in reality, we can't ignore all other factors, because bitcoin gets value from exchange, not creation. So we need a third non-linear differential equation to show how mining relates to supply. And then we need a fourth, to show how value and creation relate to demand. And then we need a fifth, to show how value relates to saving. And then a sixth, to show how...
See where I'm going with this?
That free money will encourage people to hoard BTCs forever or until another wishful investor buys them, fueling speculation and price bubbles. Bitcoin will ultimately be regarded as a phony investment with no real value, just like the good ol' Pyramid (Ponzi) Scheme where everyone purchases a ticket just to sell it to someone else later for a high profit until the whole system collapses when it runs out of new victims.
A conclusion drawn from your previous linear mistake. You are assuming a system with no feedback, and then shocked (shocked!) to find that it runs away to a singularity.
This scenario can only be avoided if the cost of generating new BTCs got constant. Which can only happen if participating nodes needed to exert a more or less constant amount of work (cost) to generate a given amount of BTCs. Only then will people be inclined to actually spend their coins, and they can finally serve their purpose as a stable medium of exchange.
You are totally correct that your fictional linear model can only be saved by adding feedback. But your model isn't reality. Reality already has feedback in place.
But that's not it. The very fact that the newly-generated coin supply dwindles as its user base (hopefully) continues to grow will raise that 19% deflation rate even higher. Let alone that many coins are forever destroyed via HDD failures and lost thumb drives, pushing the deflation even higher and higher. High deflation is bad because nobody spends their money, they only save it because it gains value over time. Can you imagine what would've happened if, say, the Japanese government hasn't printed any (or very few) Yens during the last century while the population exploded? One 1911 Yen would have been more than enough to buy a house today. Who then would've spent their Yens in 1911? Why, almost noone of course! This scenario is only avoidable if the number of available BTCs continues to grow with its user base at least proportionally. If both figures match, we won't have deflation nor inflation.
Yawn. Do I even need to say it? Linear extrapolation with no feedback once again races to the moon. Also, bitcoin isn't atomic. We are free to divide it. Even if a single bitcoin will someday be worth eleventy billion dollars, it doesn't mean that we can't peel off a fraction to buy a loaf of bread today.
I'm going to stop here. The later part where you want the equivalent of 12 billion new coins produced per day left me nearly speechless.