Anthropic units

Anthropic units are a way of measuring things that are important for life to exist on Earth. These units are based on the idea that everything in the universe is made up of tiny particles, and that some of these particles are just the right size and type to allow life to exist.

For example, one anthropic unit is called the "fine structure constant," which is a number that describes how particles interact with each other. If this number were even slightly different, the chemistry of life would be completely different and we might not be here at all!

Another anthropic unit is the "Hubble constant," which describes how fast the universe is expanding. Again, if this were different, the universe might not be a place where life could exist.

So basically, anthropic units are a way of measuring these important properties of the universe that make life possible. They help us understand how lucky we are to be alive in this particular universe, and how important it is to protect our planet so that life can continue to thrive.