I swear me and my dad were having this exact conversation....we were laughing and joking around that how in thousands of years even hundreds of years, humans won't be communicating at all.
We will have forgotten how to speak all together, we will be standing right in front of someone having a conversation with them, but instead of talking to them we will have these new inventions like little hand held computers and will will be talking to each other through those instead of speaking, because by that time the human body will be created without a mouth.
scary part is...that conversation left me thinking and alittle scared!!! cos its so true.........just glad i won't be around when it happens!!!!!