Connecting a wallet to a dApp gives the site:
Connecting shares an address that is already public. Every action that moves value needs a separate signature, which is the click that actually matters.
Impermanent loss happens because a liquidity pool:
The pool maintains a ratio, so it moves you out of the winner and into the loser. On a volatile pair the gap versus simply holding is frequently larger than the fees earned.
A lending protocol offers 400% APY on a new token. The most likely explanation is:
Very high advertised yields are almost always emissions of a token being printed to pay them. The headline rate and the change in value of what you are paid are different numbers.
Where does the image for most NFTs actually live?
Storing images onchain is prohibitively expensive, so most tokens point at IPFS, Arweave or a plain web server. That last one is only as permanent as somebody's hosting bill.
Which of these is a real, widely used NFT that most people never think of as one?
Every ENS name is an NFT, as is every Uniswap v3 liquidity position. The standard turned out to be far more useful than the profile picture market that made it famous.
After disconnecting a site from your wallet, any approvals you granted are:
Disconnecting is cosmetic. Approvals live onchain and require a transaction to remove, which is why old approvals are a standing liability.
A flash loan lets someone borrow with no collateral because:
Atomicity is the collateral. If repayment fails the whole transaction reverts, which is elegant and also why flash loans feature in so many protocol exploits.
TVL rising sharply while deposits are flat means:
TVL is denominated in dollars, so it moves with the price of what is locked. Reading it as a growth metric without checking that is a common mistake.
Work through what you got wrong
A session is one to one and screen shared, on your own accounts, at your pace. We never ask for keys and you click everything yourself.