Thoughtful with good information and reason. In short, we are probably alone in our galaxy, but we are nowhere near being sure about that. We have reasonable evidence we are alone. The calculations discussed in the video are useful, and they imply there are many reasons to seem alone if we aren’t quite alone.

Fundamentally to me, the purpose of the universe is to use enthalpy to do work and use it up, increasing the entropy with every moment. The purpose of the universe is to make entropy.

If you think of entropy as chaos, you won’t understand. Entropy isn’t chaos, it is used-up energy. It cannot be used again, but it is still energy. Order and disorder are poor analogies. It is not correct to say order doesn’t arise from disorder. The statement is simply false. Order arises from disorder all the time in various ways depending on enthalpy and work.

Because living systems use enthalpy much more effectively, I expect living systems everywhere they can be. Further, I expect living systems to expand and maximize as much as possible. 99.9% of all predecessor examples we have accomplished that and passed on. The only example we have exactly like us (we ourselves) seems to be ever-expanding and increasing capacity. It may be that other “like-us” examples exist intent on minimalization, but that is counter to the ever more effective use of enthalpy that seems to be the sole purpose of the universe as a whole.

Beyond our galaxy, we have no data. It is too big with too many possibilities to support any conjecture. Within our galaxy, so far, the only reasonable assumption is that we are alone. We can hold out hope, but the universe doesn’t seem concerned with wasting space. It does seem concerned with using up enthalpy and increasing entropy as fast as it can figure out ways to do it, and ways emerge, figuring out how to do it. Emergent self-organizing systems arise from unbalanced systems. That is physics, not psyche. Supposing consciousness is some sort of emergent physical self-organizing system is contra factual. Consciousness is much, much more than a self-organizing physical system. We know less about our minds inside than we do about all that is outside. Consciousness may be the key. Consciousness may be so exceptional that it arising even once in a galaxy is long odds. No consciousness, no engineering. No engineering, no world-building and expanding into otherwise deadly environments. No world-building, no new worlds. That could be the great filter.