Two Reflections from Physics on Investing

1.
What Physics says

Intense sub-planck undulations are seen as glimmers of distortions when zooming out, and are smoothed out on a higher level. Vice versa, seemingly flat world could be surprisingly dynamic if viewed in a sufficient close manner.

Figure 5.1 By sequentially magnifying a region of space, its ultramicroscopic properties can be probed | Source: The Elegant Universe by Brian Greene
In the investment world

Fluctuations in prices within a short time frame, however dramatic, could be (at least partially) smoothed out in a longer period of time. Vice versa, more details or clues of changes could possibly be found behind the scene even if prices stay the same in a week/month/year.

2.
What Physics says

While sub-planck variations are cancelling out with each other, some changes are constant and going in certain directions, although might be immaterial/unsensible on a daily basis – e.g. our universe is ever expanding.

Google results for "universe is ever expanding", Quora

In the investment world

Certain underlying trends (company, industry, economy, society, species, planet, etc.) are happening definitely in the long run. Trying to uncover those trends and making investments according to those should be an effective long term approach.