Aliens: What is ‘The Great Filter’?

Photo by egil sjøholt from Pexels

When we look into the vastness of space in search of advanced civilisations, we find nothing. We are the only civilisation we can be sure we’ve found and, let’s be honest, it was pretty easy to find ourselves. Other species, however, have proven more elusive.

In my previous post, I discussed why it is likely that we should have seen aliens. Yet, we don’t seem to see anything. Just dead space: planets…