What an amazing human being was he!?
and that face - so old and so young - has become the stuff of iconography etc. deservedly.
On a minuscule level - handwriting: I am pleased to see that he had similar problems in writing the letters 'u' and 'm' and 'n' - just wavey lines - I do the same, try to correct it, but can't - probably too late in life.
Will never understand the mathematics which prove his conclusions, or rather by which he arrived at his conclusion.
Taurisk