Of course there's no guarantee she'll ever run faster, but given her age and other circumstances, claiming she's a doper if she ever does is incredibly short sighted.
I do agree this was the first time we've seen her tie up, but considering she ran a stress free 1:55.2 in the Olympic final, I don't think that says much about her career ceiling.
Mind, I'm not claiming she's a WR lock by any stretch; I'll just be surprised if she peaks at 19.
She may run faster but beating 1.53 would take doping. Clean doesn't beat a doped world mark.
What not even 38 years later, that seems such a sweeping statement. So much has changed in regards to training, diet, recovery,shoe design ect that a record from that era must be possible drugs or no drugs. And it was drugs.