John O'Farrell, General Partner at Andressen Horrowitz, on ideas:
Some great ideas work spectacularly the first time around, handsomely rewarding the original entrepreneurs. Others fail or flounder initially, sometimes multiple times, before a combination of the right entrepreneur and the right market and technology conditions unlocks their true potential.
He goes on to give two convincing examples, and follows up on the next day with another. Great read.