2) The total network hash rate will hit 1500 TH/s (1.5PH/s - peta hash) by that time.
3) Lab_Rat will only ever deliver equivalent of 100MH/s per share. (contrary to stated plan)
4) These shares will continue to be worth 0.15 BTCs each with no growth (or reduction).
The problem is right here. You can say that
BTC0.15 per 100MH/s is a great price right now (network at ~250TH/s), but when the network reaches 1500TH/s, 100MH/s is worth then 0.15*250/1500 =
BTC0.025, an
83% devaluation.
Did you miss that my whole argument is that 0.15 per 100MH/s when network 1500TH/s is still a good price (
~58% annual return)? Totally competitive with anyone in the market (by orders of magnitude). If you did the math assuming ~250TH/s network (poor decision IMO), then the estimated rate of return is like
350% (meaning you earn 3.5BTC per 1 BTC invested). So yes an 83% 'devaluation' from ridiculous to pretty-good-and-totally-competitive.