Tinnitus frequencies are not quite random. There are particular frequencies at which you hear that ringing in your ears.
The genetics of aging. I saw Tom Cruise's Top Gun: Maverick recently, and besides the impressive air sequences, the most awesome part of the movie was how slowly Tom Cruise has aged. Some of it's makeup and healthy living, no doubt, but genetics likely plays some role. This image has been circulating on the Web, contrasting Tom with Kelly McGillis, who hasn't fared quite as well.
When Donald Trump was running, some called attention to some of his entrepreneurial flops, such as Trump College, which was meant to provide real estate training. People don't realize that the very rich often do this - start ventures, see how it goes, and shut it down if it's not making money and there is no realistic path to doing so. Google has done this many times - buying small companies and their products, then killing them when there is no future to them. Here's Google's 2023 Graveyard.