Things must therefor repeat. If fact, it only shows that with light as your tool you can not expect to see the finest details. This is a metaphor sense Einstein was an atheist. It is almost impossible that aliens who were able to get here would then crash. Roswell is almost as dumb as ESP, astrology, witchcraft ect.
Resonance is seen in many scientific devices.
Riding a swing is fun because a little energy gives a lot of effect. This is because its value is coordinated over time. You amplify your voice like the Bay of Fundy gets big tides. Tides are 11 hours apart and that s how long it takes for Fundy bay to fill. The energy of the first tide is saved as potential in the lifted water and added to the energy of the next tide.