Dark Energy

The video explores the concept of dark energy, its role in the universe's expansion, and the historical context of its discovery. It discusses the acceleration of the universe, attributed to dark energy, and the personal challenges faced by the speaker in accepting this concept. The video also speculates on potential modifications to Einstein's theory of general relativity, suggesting that dark energy could lead to a significant shift in cosmological understanding.

Why does the speaker find dark energy more challenging to accept compared to dark matter?

What potential revolution in cosmology does the speaker associate with dark energy?