A good start to the day: a math test for mind training!
Try to imagine a group of different numbers. Let them be five. Submitted? And now arrange them in ascending order. Where was the smallest number? Surely left! Indeed, in our culture, it is this direction that is taken — in a letter, for example. And, say, the Arabs are the opposite - in the experiment above, as you can guess, the number with the smallest value they put on the right.
It is curious that small children who do not yet have written language in any of its forms are also guided from left to right. This gives scientists the opportunity to assume that this is probably the innate method.