As "way forward" report it covers only half the problem. Identification of the risks including the likelihoods and hazards is pretty good. I like the notion o

As "way forward" report it covers only half the problem. Identification of the risks including the likelihoods and hazards is pretty good. I like the notion of contrasting opinions included in the report. But the big thing missing is mitigations: what can they do about training, about recruiting, and especially about "industry" investing in compilers? This report says nothing about ways to assure continued usability of Fortran-based codes in the next 10 or 15 years. It just lists risks. What can they do to improve the capability of GPU compilers, CPU compilers, training or staff development? And, setting Fortran aside, what are the plans to assure continued capability in supporting and developing all of their codes, in whatever languages, in the next 10 or 15 years? This evaluation might well be replayed for CUDA, Python or Julia in the next 5 years. The US budget for supercomputing must be in the $2G to $5G per year range, yet it seems the notion of planning a software strategy for supercomputing is not achievable.