Optics.xyz was sold by Swetha back in September for $19,888. There is now a site up which tells you to go to the app which is at Optics.app. I think that alone is interesting that someone willing to pay close to $20,000 for a .xyz that is being used to redirect visitors to the app.
Their Github page describes them:
Optics is a cross-chain communication system. It handles passing raw buffers between blockchains cheaply, and with minimal fuss. Like IBC and other cross-chain communication systems, Optics creates channels between chains, and then passes its messages over the channel. Once a channel is established, any application on the chain can use it to send messages to any other chain.
Original article: Optics.xyz buyer revealed
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