So they were rushing to an empty house to rescue who exactly?

1. Extra virgin olive oil for anything where the taste is a good thing
2. Any oil with high monounsaturates and zero saturates (the rest being polyunsaturates). This may be a seed oil.

Extra virgin olive oil (and it has to be extra virgin) is known and scientifically proven to be very good for you.

Seed oils are today highly controversial - I avoided them for many years - but current science research suggests that they are perfectly safe, and indeed good for lowering cholesterol.

Here’s a real scientist, working and published in exactly this area, talking about this exact question: https://youtu.be/VRlleOTBq7k

I agree with your logic and analysis.

However the non-tangibles here are pretty staggering - Russia is hugely dependent on China and India for exports (basically oil and gas) to raise cash and foreign currency. It also needs high tech goods from China - China provides drones, cars, bikes, clothes and more to support the invasion. And critically a lot of electronics, including those under sanctions being smuggled from the West.

Placing tariffs on China sends a strong negative message to China - it’s a real slap in the face that will invite a pretty nasty punch back again.

What on earth motivated this?

TSMC and Intel both use ASML lithography, but there are many many more steps than just lithography - Intel, TSMC, Samsung and other chipmakers use different processes to make the components on their chips (many of which are patented and so owned by specific parties).

These things include the physical structure of the components and wiring on the chip, how the silicon is doped and with what ions, what coatings are put on to be etched in the lithography and what coatings are applied to the etched layers, how the chips are packaged and also how multiple chips can be combined into one package.

Basically there are similarities but also hige differences between the different manufacturers, and a lot of trade secrets.

If you’re interested in this kind of thing, I’d recommend the youtube channel Asianometry - the content creator is amazing.