As I mentioned above, ZFS is a good example of filesystem encryption without the block device constraints. But between your OS and the hard drive in your lapto

As I mentioned above, ZFS is a good example of filesystem encryption without the block device constraints. But between your OS and the hard drive in your laptop, use whatever full disk encryption software that is best supported & most secure. He's not criticizing FDE in general, he's saying "don't constrain yourself to the block device model if you're designing database encryption etc etc."