
Anyone with a basic understanding of computer networks can tell you that you cannot trace DoS like that. Especially if it is DDoS, where it is usually a bunch of unsecure devices that attack in a group, which is called a botnet.
If you are just sending stuff to overload it, you do not need to include the real return address. Elon is just expecting the majority of people will not understand any fancy computer word he says. He has proven to know nothing about computers when he bought the twitter and he has proven it by this absolutely ridiculous claim.
Of course! I only picked my favorite one where he rated developers based on the number of rows they committed to git.