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> Crypto can never be seamlessly mixed. No matter how hard you try, transactions and trails can be reconstructed.

Yes, you can. Particularly with zero knowledge proofs and zero knowledge rollups.

Yep, which is actually specifically what tornado.cash was. It was a zk based mixer.

As you say: You absolutely CAN seamlessly mix crypto, but it will show a point in it's history where it says "this is where the crypto was seamlessly mixed"

That's only because tornado cash was a single contract and was mixing ERC20s that were not issued under a zk protocol. If you control the whole banana via a rollup or layer 1, absolutely, you can achieve complete privacy.

I should have said "most". This shows how hard it is even when using various methods such as cross chains:

https://www.wired.com/story/bitcoin-seizure-record-doj-crypt...

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