Anyone who has had to wait while someone goes "against the flow" to retrieve their bag from the overhead (because the bin above their seat was full when they sa

Anyone who has had to wait while someone goes "against the flow" to retrieve their bag from the overhead (because the bin above their seat was full when they sat down) knows this pain. In an emergency, that delay could kill someone. When Boeing designed the 787, the composite construction allowed for larger windows. I wonder if it allows for larger emergency exit openings too.