He can surely sustain as being the richest in the world but the question is, Can he surely maintain his position? Well, nobody really stays at the top forever, as time goes on things begins to change. There was a time when nobody knows who Elon Musk is, and it was like he’s not even existing. Just like how Bill Gates exist as the richest man in the world, I thought that time he's going to retain his position but, it then happened that Jeff Bezos became the world richest man and right now, out of nowhere came Elon Musk. So that's how it's going to be when time goes by, someone will still take his position. Maybe, he won't stay like this forever but one thing is for sure, he will be put down as one of the greatest in history that will surely praise and become an inspiration to the future generation.