Theoretical throughput is high. Liquidity is still pretty low and the network is vulnerable to a variety of attacks.
If someone is sending me an altcoin with a high bitcoin exchange rate (let's say its 1:1) it'll exhaust one bitcoin of liquidity in my direction.
We will be competing for bitcoin liquidity with other assets afaik.
I think it will self regulate like currently with plain transfers:
if you think your NFT is high value - on-chain for all low-value NFTs - the LN is the way to go, and this will impact liquidity much less
this new traffic and interest in it - will make that liquidity will be growing yet, additionally
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