It’s wonderful to see that we’re making progress, but honestly this sort of thing reminds me how crude our understanding really is. It’s a bit scary this wasn’t

It’s wonderful to see that we’re making progress, but honestly this sort of thing reminds me how crude our understanding really is. It’s a bit scary this wasn’t already known, ie that the blood brain barrier wasn’t understood well enough for someone to come up with the study’s hypothesis. The fact that we’re still finding low hanging fruit like this makes me worry that we don’t really have the technology to be dealing with brain issues on a fine grained level, and that it’ll be many decades before we do.