For me, this Titanic Sub thing is a cautionary tail about Climate Change

We are fragile creatures. We live in an environment that has vary specific characteristics that we need to survive.

We can only comfortably exist within a narrow layer of atmosphere a few miles thick around our home planet.

Everywhere else in the universe is trying to kill us. Everywhere. Always. Usually in horrible ways.

We can sometimes venture into those hostile environments with a substantial amount of technology. But when we do, we live on a razor's edge where death is one mistake away.

In a way it reminds me of the movie "The Martian". Great movie, well acted and relatively true to the science. I know I am supposed to be warmed by the storyline and the triumph of the human spirit. But I just came away thinking..."Holy Shit, that place is horrible and it took the collective capabilities of two Countries to keep one man alive."

In both cases, it just makes me realize how lucky we are to live in the Goldilocks zone. This is a reminder to how unforgiving those hostile environments out there really are.

We need to work harder to keep what we have so that we don't find ourselves needing that Planet B that doesn't exist.