The realisation that humans may become twice as intelligent may not be that mad after all. I hear you thinking what is this for real? However neuroscientists have focused on understanding the basis of how intelligence actually works. They have discovered that the brains of people with high IQ tend to be highly integrated, with neutral paths connecting distant brain regions, while less intelligent people’s brains build simpler, shorter routes. But no-one knows why some brains construct the much longer range connections than others. In a simple form, imagine that instead of the current mean IQ score of 100, humans had an average score of 200. Furthermore, IQs of 200 would allow us to pursue the activities that are of most interest to us and it would allow us to remember more and learn faster, which would be highly advantageous individually.
However the pros of being twice as intelligent come with cons as well such as if everyone became twice as intelligent the criminals would equally be clever and would prove a challenge to the government as they write and enforce the safety regulations! They would have a nightmare trying to keep up with the criminals and would most probably be outsmarted as a result.
Despite these issues there is a very good chance that higher functioning brains would help us to invent technologies to fix some of the bigger problems. Haier (a neuroscientist and professor emeritus at the University of California) explained that just as a team of 100 engineers is more likely to come up with a remarkable innovation than a team of 10 because there is more brain power working on the job in hand. Having 7 billion geniuses on earth would likely lead to solutions to some currently intractable issues. We might figure out a hyper-efficient way to desalinate saltwater, for example or tap into a limitless alternative energy source.
Because both advances would produce a greater abundance of resources they would likely minimise social conflict.
Apparently according to Hunt (professor emeritus of psychology at the University of Washington and president of the International Society for Intelligence Research) if everyone became more intelligent they would be better looking, a study from Harvard University found a significant correlation between peoples test scores and how physically attractive other people rate them to be. With the increase in intelligence society may take into account they need to keep fit to stay healthy therefore may do more exercise and groom more often.
One final point is that even when scientists do finally discover the mechanism for boosting up intelligence, it is highly improbable that everyone would be given an immediate IQ boost. Also it could back fire and some people could get an intelligence boost whereas some others could stay as they are and fall behind in society.