I think it would be a healing ritual for the MO community for someone of appropriate stature (which excludes me) posting an inviting cwiki question that elicits responses from the users to this significant passing, the equivalent to mathematics of Bill Thurston's untimely death. The (useful) notice, Grothendieck -sad news, doesn't quite achieve it. Perhaps something along the lines of Dave Roberts' query in the comments...?

I think it would be a healing ritual for the MO community for someone of appropriate stature (which excludes me) posting an inviting cwiki question that elicits responses from the users to this significant passing, the equivalent to mathematics of Bill Thurston's untimely death. The (useful) notice, Grothendieck -sad news, doesn't quite achieve it. Perhaps something along the lines of Dave Roberts' query in the comments...?

I think it would be a healing ritual for the MO community for someone of appropriate stature (which excludes me) posting an inviting cwiki question that elicits responses from the users to this significant passing, the equivalent to mathematics of Bill Thurston's untimely death. The (useful) notice, Grothendieck -sad news, doesn't quite achieve it. Perhaps something along the lines of Dave Robert's query in the comments...?

I think it would be a healing ritual for the MO community for someone of appropriate stature (which excludes me) posting an inviting cwiki question that elicits responses from the users to this significant passing, the equivalent to mathematics of Bill Thurston's untimely death. The (useful) notice, Grothendieck -sad news, doesn't quite achieve it. Perhaps something along the lines of Dave Roberts' query in the comments...?