in software making, what's Doable, Sellable, Wanted, and Needed, rarely overlap.. When they do, there's a dream come true. But - how to measure that? Is that pr

in software making, what's Doable, Sellable, Wanted, and Needed, rarely overlap.. When they do, there's a dream come true. But - how to measure that? Is that productivity? or acumen? or luck? Which may hint at Exupery.. How do you measure love?