>Ok, fair. What I mean is high leverage, which is the fuel for the type of manipulation I’m referring to.
Why does that make a difference? And how is it any more coherent to talk about margin "coming to" DEX? The moment anyone can borrow on margin, it has "come to" DEX. You keep speaking with a mental model of DEX that doesn't jibe with reality, like they're walled gardens rather than platforms open to anyone with little friction other than gas fees.
>To your point about CEX lying about price, that’s a very risky proposition for the arbitrage reasons you mention (CEX arbitrage actually easier for a number of reasons, but I understand why you’d think DEX is easier).
It's fun to idly speculate about this, but we know for a fact that flash crashes have happened on centralized exchanges, which is stronger evidence than any of your assertions of superior understanding of how they work. Furthermore, people have had their margin liquidated on those CEXes at the fake prices.
>No, I said capital efficiency, not execution cost. DEX costs are crazy, but that’s by choice, whereas the capital efficiency is a structural issue. If I want to provide liquidity on 100 CEX markets, I only need enough capital to wear the orders I actually get filled on at any given point in time. As an AMM I’d have have enough capital to be in a 100 different LPs.
If that's what you meant, then it's coming from the same dubious mental model I complained about above -- when you enter into a liquidity pool, you are providing liquidity to the entire cryptocurrency's network, not just people who are "on" that DEX (which isn't a coherent concept). Anyone and everyone has the option to accept that offer (sorry, "remove that liquidity"). Several protocols look at the entire DEX market to find the best (combination of) price(s). You do not need to be in multiple liquidity pools (which, again, not a coherent concept).
LPs are not something you have to "be in"; you as a trader are free to accept the offers (sorry, "remove the liquidity") of any LP in existence.