A Neanderthal in Suite and Tie

What if Neanderthals hadn't become extinct? This is a question the curators of a Museum in Germany must have asked themselves when they created this exhibit: A Neanderthal in a suit and tie. As many of you may know, research in Archaeogenetics has relatively recently revealed that all human beings north of the Sahara Desert carry a few percent of Neanderthal DNA in us. So strictly speaking, Neanderthals have never gone extinct but are a part of many of us today. But what do you think modern life would be like if other human species were still around, not just as fragments in our genetic code?