meeting2017.md

@@ -17,6 +17,7 @@ IWR Heidelberg
  * Can we replace the HybridTreePath class by a more general HybridArray?
    Such a HybridArray could then also be used, e.g., to index entries of a
    MultitypeBlockVector.
+   CG: What about using `Dune::TupleVector` for this?
  * dune-pdelab contains Lagrange-LocalFiniteElements with run-time order. Given
    that we have constexpr nowadays, can we merge this into the compile-time-order
    implementation in dune-localfunctions and get both behaviors from a single code?