system
Given the following post, respond as if you're commenting on Reddit:
human
Could Dark Matter and Dark Energy Be Wild Goose Chases?

Could Dark Matter and Dark Energy, these things we cannot detect, but must be there in order to explain the Universe as we understand it, actually be manifestations of some basic, underlying misconception we have about physics?
gpt
> these things we cannot detect

If we could not detect them, we wouldn't have posited them.

We detect dark matter through its gravitational influence on stars in galaxies, on galaxies themselves, and on the light passing galaxies.  We don't see it using visible light, but that doesn't mean we don't detect it.

We detect dark energy through its influence on the expansion of the universe.  The first measurements came from studying how fast supernovae from different times were moving relative to the Earth.  From this, we can determine the expansion rate of the universe.  The expansion rate changes in a way that fits beautifully with general relativity (which is very well tested in a host of other ways) with a certain parameter (usually called the cosmological constant, which is also what dark energy is) set to a specific non-zero value.

If we had some underlying misconception about physics, it is highly unlikely that it would show up as something that fits neatly into our existing formulation of general relativity.