Humans have language – the result of a mutation in the human brain. And before long there were many languages. As soon as they learn a language – which they do easily, as small children, they have to change it – and do so in an amazing variety of ways. Humans are creative – almost too much so.
And once they had language they could think.
I had an experience once that showed me how necessary language is for thinking. I had a TIA, a mini-stroke, the paralyzed the speech centers in my brain. I couldn’t talk – only make strange sounds. I was sure I knew what had happened to me (I was out running, and suddenly my legs refused to work – and I fell down) but without language, I could not even explain this to myself. Very frustrating.
As I already said – we could think, but some of our thinking was very strange – we could go crazy, when our thinking had gone wrong. In fact, our ways of defective thinking far outnumber our effective ways. Once our minds go wrong, the ways they can go wrong, are limitless – and some of them are subtle, and hard to detect.
And this insanity can easily become social – and effect large populations. Who are absolutely certain that nothing is wrong with them.
Wars can result – where millions of people are killed.
Some good may come out of these wars – WWII created Electronics, and then TV and the Computer. But the Computer has not made the thinking of most people any better.
In fact, they are now crazier than ever.