I fail to see why I was down-voted for this. "I've learned that 5% of a business is the idea, 15% is the product, and 80% is the selling. The number one reason

I fail to see why I was down-voted for this. "I've learned that 5% of a business is the idea, 15% is the product, and 80% is the selling. The number one reason companies fail is because they do not know how to sell? Isn't it better to spend more time at "Sellathons" learning how to sell - and less time at Hackathons?" There is absolutely nothing in here about a newsletter. I feel it's a valid question.