This is a really cool product. And now you have an extra reason to use it (to maxx farm the coming airdrop). TLDR: You can buy/trade a coin on one network (like ARB) using money from another network (like Solana) and use coins from a third network (like OP) to pay for gas without having to bridge. This eliminates the need to manually bridge assets and no managing multiple balances; literally just use applications and forget about the underlying chains they operate on.