As for the impending doom and gloom you're prophesying will accompany the decreased payout in a few years, all I have to do is add a little multiply by two to my exchange rate calculation and the problem is solved. The exchange rate stays constant and everyone is happy.
Can you explain that part? I didn't understand how multiplying by two will achieve stability.
I use a formula to calculate my exchange rate which is described on my
exchange rate page. When I generate my first block of ฿25 rather than ฿50, I can simply change my formula to multiply bitcoins generated by two which will turn that ฿25 into ฿50 within my formula. Bitcoins are worth how much I say they are worth. If tomorrow I say they're all worth half as much as today then it would be so. Go ahead and create your own exchange service using your own formula to value bitcoins and you can have just as much control over the worth of bitcoins.
I absolutely disagree that the current model is unsustainable and I absolutely disagree that people will not spend their bitcoins. If I had my druthers, the amount of bitcoins awarded would grow at the same rate as worldwide human population growth, but it doesn't matter because druthers are just druthers and they ain't important at all.