During my university studies, Moore’s Law was very often mentioned and each time it always seemed to me a rough approximation but it makes sense. For those who do not know Moore noticed that* the number of transistors per square inch on integrated circuits had doubled every year since their invention.*

Moore’s prediction proved accurate for several decades, and has been used in the semiconductor industry to guide long-term planning and to set targets for research and development.

I think that there are physical limits to the development of integrated circuits that can not be ignored. Such as the area and power to be dissipated.

As you can see, the beginning is slower and we are now slowing down, this is naturally described by an already known mathematical function, call**logistic**function.

where

*e*= the natural logarithm base (also known as Euler’s number),*x*_{0}= the*x*-value of the sigmoid’s midpoint,*L*= the curve’s maximum value, and*k*= the steepness of the curve

In its simplest form with *k = 1*,* x0 = 1 *and *L = 1*:

This is the graph of the function when the parameter k changes:

With k = 2 we obtain a double growth every year, as stated by the moore law.

We can therefore say that there is an area of initial growth and a saturation zone after which the phenomenon no longer grows.

At the center we find a zone of linear growth.

Personally I think the moore law is in the linear growth zone.

This is Moore’s law model extended through the use of the logistic function that describes each natural trend. Tell me what you think about.

I BULLONI

Grande Gianluca!

I consider it more of Moore’s observation, than a law really. There is no scientific reason or effect that would cause transistors to double every year. Someone just noticed a trend that the transistors happened to roughly be doubling every year. I’m sure many in the field noticed this, it’s not exactly some magical discovery. Moore just opened his mouth first I guess and made a deal about it as if he discovered something amazing. I never understood why this is even a thing. There are trends in everything, many which are consistent for long periods of time. Pointing out a trend isn’t exactly a ground breaking discovery, they are all around us.