Whilst barely in his 50s Professor Selwyn was diagnosed as suffering from "multiple system atrophy" (MSA), and told he might have only around 5–9 years left to live.
However, even after being forced to take early retirement several years later he continued to write and publish in addition to travelling.

Despite his physical decline during his last decade or so he managed to retain not only his dignity and sense of humour but his passion for life also.
Refusing to lose his mobility or become passive he instead delighted in learning to drive a new electrically driven self-propelled wheelchair.
Eventually, as his condition worsened he lost his ability to speak, but, again undaunted, he learned to communicate by typing a single letter at a time on his lightwriter which had a built-in voice synthesiser.

He enjoyed a private family party in his honour for his 62nd birthday and was as full of enthusiasm and humour as ever (though of course had some difficulty in expressing it).
He died peacefully at home later the following day.
Whilst barely in his 50s Professor Selwyn was diagnosed as suffering from "multiple system atrophy" (MSA), and told he might have only around 5–9 years left to live. However, even after being forced to take early retirement several years later he continued to write and publish in addition to travelling.
Despite his physical decline during his last decade or so he managed to retain not only his dignity and sense of humour but his passion for life also. Refusing to lose his mobility or become passive he instead delighted in learning to drive a new electrically driven self-propelled wheelchair. Eventually, as his condition worsened he lost his ability to speak, but, again undaunted, he learned to communicate by typing a single letter at a time on his lightwriter which had a built-in voice synthesiser.
He enjoyed a private family party in his honour for his 62nd birthday and was as full of enthusiasm and humour as ever (though of course had some difficulty in expressing it). He died peacefully at home later the following day.
Sydney Selwyn