Ah very true. Still, I think one of the differences with John Ellis vs some other string theorists is that he places a far higher priority on the validity of experimentation over pure theory. That’s the point that impresses me about him, moreso than his work on or choice of string theory. Some string theorists are happy to live in the land of pure mathematics – and that’s fine – but without the experimental data, they’re nice thought experiments. That’s the nuance of difference I see that he makes.