I remember vividly a conversation I had once with my dad. "Hey dad," I said. "I need you to buy me a new skateboard.""What happened to your old skateboard?" he asked. "Did it break?""No. They just came out with a new model, and I need to upgrade to the new and improved one. It is way cooler and way safer." I smiled."Let me get this straight," he said. "Are you trying to t...