Harvard professor Avi Loeb believes he's found fragments of alien technology

If I understand the article, he received notification of the probable impact area of a meteorite moving fast enough to suggest it probably did not originate within our solar system. Fair enough.

But then his team didn't really find the impact site itself. They just drove a magnet sled around the area to see what it picked up. They found tiny spherules. Okay. That suggests something that was melting in the air. But couldn't that have been from any of a thousand other meteorites? Couldn't it have been volcanic? Couldn't it have been ancient, rather than modern?

Did he also drive his magnet sled in other areas that are not in the impact zone of that meteorite? What did he find?

This seems to be a lot of wishful thinking.

His biography seems stable and distinguished enough, without the hints of crankdom I expected from the logical leaps and poor methodology described. Perhaps we are seeing another academic descend into madness - or perhaps there are actual feet to this story?

Honestly, it seems like there's a different meaning of "technology" than we first expect. I fail to see how these spherules constitute technology - and how they are unique from spherules found in relation to other impacts or e.g. Martian spherules.

More information here:

Physicist who found spherical meteor fragments claims they may come from an alien spaceship – here’s what to make of it https://theconversation.com/physicist-who-found-spherical-me...

>84% iron, 8% silicon, 4% magnesium, and 2% titanium, plus trace elements

This guy is missing 2%! Kind of important to include everything if you want to announce you've got your hands on alien tech and not some pitted and squished ball bearings.