A nice metaphor brought to us from the world of wine is that happy grapes don’t make for good wines. Grapes need to work hard under stressful conditions in order to produce their deliciousness. Hoby Wedler, an organic chemist turned entrepreneur selected as one of Forbes 30 Under 30 in Food & Drink, who also happens to be blind since birth, offers as an example the happy Cabernet grapes grown in the Central Valley of California. They are watered, get …