Solo, you said:

Great piece about Raul and his scientific work that has spanned over half a lifetime. I believe I once saw a reference to him in a technical paper for work he had established in 1949.

Looking at the photo of Dr Madrid in VITs' gallery he hardly looks that old. If that were true, early work would have to place him in his early twenties in 1949 which would have him currently in his young eighties, if it was for a Doctoral Dissertation then he probably would be in his mid to late eighties.

Maybe he has a motorized walker to get around all that rough terrain, conversely, I have a mental image of him sitting in his diaper on a mountain top, contemplating a rock.

I own an ever increasing number of wrinkles myself, so just trying to keep things light, no offense taken in this O/T I hope.