[...]
It's just amazing how he was talking about things like OP_CHECKSIGFROMSTACK before we even grasp the whole blockchain concept. Is there any reason he didn't include it in v0.1?
And then, you can use the same signature, to release both coins
Doesn't that require both coins using the same elliptic curve? OP_CSFS will run on Bitcoin software, which has no knowledge of e.g., Curve25519, which is used by Monero.
By the way, note that in 2010, in this thread, people talked about buying domains with Bitcoin, not with NameCoin
I think you mean "buying domains in Bitcoin", or in another Bitcoin-alike blockchain (BitDNS). We could have that decentralized DNS with OP_CSFS, but I cannot think of any other ways. (Namecoin obviously isn't the way to go, due to the creation of another token.)
BTW, before, I meant "how to do this without introducing CTV or any other such popular proposal, like OP_CSFS". Do you understand what the OP is talking about?