Hard anodized aluminum is sealed with something, often teflon.

Nope. It’s exactly the same process - it’s just Type III not type II.

The sealer is what makes it non porous. That sealer is usually teflon that wears off.

Pretty sure they know and are making joke.

What nonsense is this. The airline checks your ticket against your passport prior to departure. If airlines board anyone without the proper passport or visa and are rejected on arrival, it’s the airlines’ responsibility to fly you home on their dime.

No airline lets you book an international ticket and board it without a valid passport and appropriate valid visas that match the name on the ticket.

You can of course fly domestically without ID (even getting through TSA, it’s onerous but TSA has a process for that).

Your information on that ticket is also electronically sent by the airlines to the next port of entry for a huge percentage of countries.

If that doesn’t match the passport you have, you’re going to have problems at immigration wherever you’re going.

You can see this is action on any boarding pass you get for international travel.

It will say something like DOCUMENT CHECK REQD or DOCS OK right on your boarding pass.

And most of them aren’t anonymous at all. You can correlate transactions pretty quickly, because every transaction is on the chain. You can track where every bitcoin went. As soon as you break one link you can follow the chain.

Good luck doing that with cash.

Blockchain has a few - really only a few - somewhat compelling use cases. Currency isn’t one of them.

Microsoft pioneered (or maybe popularized, not sure) embrace, extend, extinguish. I’m sure this is a version of that.

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Unfortunately by destroying every startup they touch. The squeeze the money out of absolutely everything while not investing in it.

The only people that can afford something of theirs and are dumb enough to buy it are fortune 500s.