> there is no value to anyone in having alternate trading platforms for these goods, all value is derived from being verified by a particular platform and baked into that platform
Some value is derived from being verified. People sell stolen merchandise and art all the time, albeit at a discount to actual price. And there's nothing intrinsic to that verification that requires Opensea.
If there were an equally trustworthy provider, or even a provider that offered better title insurance, why would people still use Opensea?
> there is no value in trading a Fortnite dance outside of Fortnite
And here's where I think the slightly interesting component is. Isn't there?
If Epic says "ownership of this digital thing gives you this other thing in game", imagine there are two ways to trade that digital thing: (1) within Epic's internal platform, or (2) on an open Blockchain.
Doesn't it stand to reason that (2) is a clearer ownership claim, with less control, and therefore more valuable? And if it's more valuable, then isn't Epic incentivized to sell their digital goods on Blockchain (and get better prices for them) than their internal platform?