参考：イーロン・マスク - Wikipedia : SpaceX’s Reusable Falcon-9 Rocket Launch
　　：テスラ (会社) - Wikipedia　
　　：イーロン・マスク、「地下トンネル構想」を大いに語る
　　：マスクＣＥＯ、タイ少年救出の英ダイバーを罵倒　

Do you think he is a genius?

Do you want to buy aTesla car?

Did you see SpaceX rocket coming back to Earth? 

How did you feel about his action at Thai cave resque?