When you sell a product or service, you're making a promise to your audience. If you don't understand your audience, you'll never be able to keep that promise and you'll ultimately let them down.
The only thing that scares me in the tech area is that it moves so fast that you have to be ready to invest in 20 things. Because if you just invest in one, next week, somebody has a better mousetrap, and you get taken to the cleaners.
I'm not a golf player. I think golf and fishing are the same, but at the end of the day, you can't fry up and golf ball and dip it in tartar sauce. So I'm a fisherman.