I was thinking of whatever test they did to determine that Sinclair has a Minbari soul.
I GUESS WE'RE MARKING SPOILERS FOR FIFTEEN YEAR OLD TELEVISION SHOWS
All the test showed is that Sinclair had Valen's DNA. Except Valen is Sinclair after some Minbari DNA splicing; the reverse of what Delenn did.
Stable time loops for the win.
Here's the new thread for posting quotes, with the usual rules: