After some careful calculation, you determine that it will cost you 1 BTC to produce, market, and sell a single widget, and that it is only worth your effor

After some careful calculation, you determine that it will cost you 1 BTC to produce, market, and sell a single widget, and that it is only worth your effort if you can sell each widget for 2 BTC, a handsome 100% margin. I stopped reading right here.