Three unrelated YouTube videos...and yet, they kind of feel related anyway. The first deals with the looming crisis in cosmology (*another* crisis coming our way!) triggered by the inability of current models to account for the so-called Hubble tension. Or, not to mince words: that our measurements of the universe´s expansion rate don´t make any kind of fucking sense.
The second video is about an asteroid which *might* impact with Earth in 2032. As in: virtually no chance at all. So why do I see click-baity videos about it all over YouTube? Well!
The third video is Sabrine Hossenfelder whipping a new AI start-up, arguing that it´s a waste of investors´money. She always says that, of course, but so far, I don´t think you can say she´s ever been wrong. Maybe she should take a closer look at the Chinese super-laser program I mentioned in an earlier post...
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