Unexpected Universe

As time passes and I grow old, the world around me seems stranger and stranger.

The standard view is that the Universe started 13.7 billion years ago and now it is mainly dark energy, dark matter, and what we have perceived more easily during human civilization, baryonic, and leptonic matter with their four interactions.

This picture is only ten years old. At this rate in five years time, we will find out that we do not know anything now, i.e., our knowledge in five years will be very different than it is now.

This is an unexpected Universe. As Freeman Dyson has told us, the Universe is as interesting as it can be.