[nsilvestri]

The fastest blindfold solvers in the world have their memorization under 10s. It encodes all the information they need to solve the cube, so arguably they are able to solve the entire cube in their head in under 10s. Execution takes longer, though, because blindfold methods at that level are still less efficient than traditional methods. However, one of the best BLD solvers, Jack Cai, has used blind solving during a normal 3x3 event, by doing his memorization during inspection (inspection time is included in the total time for the actual blindfold event). Then, with a blindfold on, executes the solve. He had a sub-12s average, IIRC.