So, in effect, they're saying that we use lip-reading to distinguish between very similar phonemes? That's... yes? I'm not seeing what's so remarkable about it,

So, in effect, they're saying that we use lip-reading to distinguish between very similar phonemes? That's... yes? I'm not seeing what's so remarkable about it, I've been aware of it since forever - it's how I can understand what people next to me are saying at loud concerts and the like. Even further, sometimes I have trouble recognising what someone's telling me if I can't see their lips and no, my hearing is perfectly fine. Guess it's one of those things where you think everybody senses the world the same way.