I think about this question a lot. I know I have false memories, but I try to acknowledge I have them and treat everything as a sort of probability of having happened. Question everything, even your own memory. Find supporting evidence for your memories or assign them lower probability of being true. Recognize when important things are happening and try to also tie them to other concrete observables. This is a big one. Abuse and rape victims are often accused of lying because the get dates and locations wrong (so tie time to things that happened the same day). People assume because rape and abuse are so traumatic you would remember everything surrounding it with vivid clarity, but our emotions make just the opposite true. Try not to be overly emotional in your recall and recall over and over when unneeded, this may reinforce false memories. Take pictures often and review them often, it will make a framework of reality that real memories can anchor to.

Gone gargoyle. (Snowcrash)

Before the presentation the conventional wisdom is this would all be hype and no real reveal. Now it is here and while not better than Boston Dynamic it is far better than had been expected. Lots of people are saying other companies have been doing this for 20 years. BUT, those companies didn't just give all their secrets for Tesla to build on. Some is open source I'm sure, but most of this was developed inhouse in a year. The real test will be what a presentation looks like with another year of work. Unlike self-driving cars, it may much easier to see and gauge the amount of progress year to year and whether this is really going to lead to something. As others have mentioned, the real progress not really caught by the general public, is not whether it can walk at all, but how much it has to be pre-programmed and how much it is just learning to do for itself and following commands.