Constructive inertial-gravity wave interference...

[iacob alex]

.....is a possible phenomenon occurrence , when two waves meet to form a greater resultant wave , as :
https://www.physics-and-radio-electroni ... rence.html
Now , the problem is to play gravity (free fall) and rotational inertia ( free centrifugal one...) as "waves"(overlaping...) ...let's say a spring mass system on a full rotating ( not swinging...) pendulum.
https://youtu.be/z6_NRNw88Jw
Al_ex

[m2x]

The youtube video reminds me of a thread I saw on a stock trading forum years ago where someone asked if anyone had a consistently unprofitable trading strategy, neglecting commissions/spread. They were joking but if you had one you could just invert the strategy and make it profitable.