[Why Alien Life Would be our Doom – The Great Filter] (Viewer #4,066,966)
Probably the biggest filter is evolving a dominant species that survives by using ideas instead of tools.
600 million years of dinosaurs, and that never happened. Thank goodness for asteroid strikes.

The filter is overcoming entropy. If order always flows to disorder, then his staircase seems somewhat difficult.
Entropy only has to increase in a closed system.
Thankfully, here on Earth, the system is open and the sun is pouring in incalculable amounts of energy every day.
Amazing how it gets to global warming but never to the possibility that the speed of light is just too hard to overcome, itself acting as a quarantine. They may have answers to that but it ought to be addressed.