All this mattered, but I think Edison’s large-scale success was built on a foundation of tending to small details. I would like to turn the discussion back to how Edison himself described his approach for constructing the foundations for his innovative work, specifically, how he solved problems like finding the best filament material for his lightbulb: “None of my inventions came by accident. I see a worthwhile need to be met and I make trial after trial until it comes. What it boils down to is one per cent inspiration and ninety-nine per cent perspiration.”