Are We Alone?


The Kardashev Scale

The Kardashev Scale can go beyond Type IV but it’s highly unlikely for humanity to reach these types. Source:
Kardashev Formula

K = Type

P = Power a civilization uses (watts)

Drake Equation

These variables can be hard to attain since some of these numbers we don’t know and are using estimates with what we know. Source:

Fermi Paradox

“Where is everybody?”- Enrico Fermi

1. The Limits of Humanity

In the center is the Milky Way Galaxy Source:

2. Communication

Communication is a possible barrier to discovering aliens! Source:
The Great Filter. Source:
What’s the reason to explore?

Key Takeaways

“Two possibilities exist: Either we are alone in the Universe or we are not. Both are equally terrifying”

— Arthur C. Clarke



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