is it possible a son is biologicaly older than his parent?
Not with biological parents.
No, it is not possible for a son to be biologically older than his parent. This is because the parent must exist before the son can be conceived and born. However, there are some scenarios where it might appear that a son is older than his parent if you consider the concept of time dilation in physics.
Time dilation can occur when there are significant differences in gravitational forces or when objects are moving at speeds close to the speed of light. In these extreme circumstances, time can pass differently for two observers in different frames of reference. This means that someone moving at high speeds or experiencing strong gravitational forces could age slower relative to another observer in a different frame of reference.
So, theoretically, a son could travel at incredible speeds or be in an environment with intense gravitational forces, causing him to experience less time dilation compared to his parent. As a result, the son could appear to be older than the parent, according to their respective clocks. However, it's important to note that this is a highly theoretical scenario and not something that occurs in everyday life.