ext4 like ext3 - the wrong way

Duh. We know that data in volatile memory disappears when hardware fails or operating systems crash. That's fine, we accept the risk of losing a few minutes' browsing history when we abuse our computers by daisy-chaining power strips or letting batteries run low on a long commute or running experimental wifi drivers.

We use a journaling filesystem so that *after* our hardware or our kernel fails -- which is more or less likely depending on the way we use them, but everyone is at risk -- whatever made it to nonvolatile storage is in a sane, recoverable state. NOT MISSING. That way we *only* lose a few seconds' or minutes' work.

[ Or browsing history, some people call that work :-) ]