Hi everyone, few questions: 1. fast_perfect_hash achieves performance(load factor) I would assume is impossible, based on perfect hashing talk <https://www.youtube.com/watch?v=yOo6GnbKzp8>. I presume reason why it works so well that compiler places type info data clustered in same region of addresses... Is that correct? 2. regarding static_list: would Boost.Intrusive list work here also, and if so was this considered? 3. basic_error_output does not seem to need the Policy template parameter, is this left for consistency or am I wrong that it is not needed? 4. dynamic_cast_ref docs <https://github.com/jll63/Boost.OpenMethod/blob/ea7dbe86b511797f0281ef07b3ada645fe569328/doc/custom_rtti.adoc> mention that D must match the reference category of B. Would it be possible to static_assert that?