You're going to insist it's fake, because that's what you do, but watch. I’m guessing about half of you are firing up your keyboards and getting ready to type replies that consist solely of “FAKE!!!!!!” because that’s the instinctive reaction whenever a video comes out purporting to show something like this. But remember: This isn’t some fly-by-night outfit claiming to have done the impossible in its garage. This is Lexus, which already has a pretty nice reputation and doesn’t need to beg for attention via fantastical claims it can’t back up. And if you’re going to claim a video’s been...