Even in technology, you have the freedom to solve a problem your way, you see. But it naturally sits in a certain framework whereas, in the physics, everybody had to come up with his own idea what he was going to do.
End of the sixties, Keith Blazey interested me to work on GdAlO3, an antiferromagnet on which he had done optic experiments. This started a fruitful cooperation on magnetic phase diagrams, which eventually brought me into the field of critical phenomena.