Stephen Zeoli wrote:

I don't know anything about Chronosync or rsync, so can't comment on
that. As to an external hard drive, I guess that could work. You will
need to be sure to move or copy any external files you use into TheBrain
(there's an option to just link to the file, but obviously, if you do
that you won't have access to it on the other computer).

Thanks for that, I will play around with the demo to see if and indeed how well it will work.

I posed your
question to the help people at TheBrain.com and here was the response:

"It's certainly possible, but we do not recommend syncing across
anything except WebBrain as it has been known to cause corruptions in
Brain databases."

I don't know if they might be exaggerating the possibility of
corruptions because they want to get people to sign up for WebBrain, I'm
not sure.

That is very thoughtful of yours, thanks a lot indeed. Of course, it is the answer one would expect but marketing blurb or real necessity, if TheBrain forced me to upload all I wanted to put into TheBrain then I'd look elsewhere. Maybe that is why they changed from PersonalBrain to just TheBrain...

In truth, I've had a corruption of one of my brains using
WebBrain, but I think that is related to also running the beta test
version of the iOS app.

I certainly feel like MyBrain had some fairly major corruption issues to deal with on a regular basis. The real one, I mean.