I believe 8 inches or 3 feet
Answer:

According to blank slate theory, the mind is completely blank at birth. From there, education, environment, and experiences – which are external, as well as material and/or immaterial – shape the child's process of development. This leaves a lasting effect on who they become.
Answer:
First, the evolution of technology is beneficial to humans for several reasons. At the medical level, technology can help treat more sick people and consequently save many lives and combat very harmful viruses and bacteria.
Disadvantages and risks of technology
On the other hand, the evolution of modern technology has disadvantages, for example, dependence on new technology. Man no longer needs to think. Even if the calculator is a good invention, man no longer makes mental calculation and no longer works his memory. The decline of human capital implies an increase in unemployment. In some areas, devices can replace the human mind.
This is a theme because it is a concept NOT the story line. A plot summary is basically the story line as if you were writing a summary of the book or story.