Earlier quoted context omitted.
I think there's at least some value that can potentially be created. The fact that you can take out a loan or buy insurance and your counterparty is a smart contract is pretty interesting. It could seriously bring down insurance margins if you no longer have drones of people administering policies. Obviously remains to be seen how practical it is.
In DeFi to take out a loan of $100 you need to have collateral worth $200 or more. If the value of the collateral ever goes below $200 then it is immediately autosold. Moreover the collateral has to be on the blockchain as well, so concrete assets like houses cannot be used for this purpose. The main issue with insurance is actually assessment. All smart contracts do is replace execution, which was never a hassle to…
For insurance I don't agree. Something basic like weather insurance (widely used in agriculture) is already possible. The hardest part is getting the weather information onchain in a way that's trusted by the buyers and sellers of the insurance. Weather oracles do exist though.