From Liam O'Keeffe
I enjoyed your feature exploring discoveries that would change what it means to be human (8 August, p 28), and would like to suggest my own.
What if the fabric of the universe turns out to be random? It does seem that the more we delve into it, the more complex it becomes. To begin with, we explained the universe with Newton’s relatively simple laws of motion, which were superseded by general relativity and quantum mechanics.
Now it looks as though string theory may explain everything – but how many dimensions will we need? Will it be 10? Or 26? Or perhaps we will eventually need an infinite number.
Abinger Hammer, Surrey, UK
