Early on Tuesday afternoon, UK investor Saalim Chowdhury of 500 Startups was giving it welly on the Venture stage tucked away in the furthest recesses of the Web Summit technology conference, otherwise known as Pavillion 5. The discussion was on “What to do with your good idea”. “Entrepreneurship is bloody hard. It’s bloody miserable. I’m not joking. I’m still taking tablets today,” he warned. Chowdhury, a former founder and startup veteran, was clearly enjoying himself. A plain speaker but not a plain dresser judging by his red velvet jacket, he warmed to his theme impressing on the packed audience the…