What is the fundamental difference between the law of radioactive decay and the laws of classical mechanics?

This process cannot be described using the classical principle of causality; according to which, when considering any physical phenomenon, its causes and consequences can be identified.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.