An interesting Facebook post regarding religious beliefs

A recent theory claims that religions in modern societies will be abolished in the coming 2 or 3 generations.

About 40 years ago this would've busted the nerves of most our population, but I'm seeing that agnosticism and atheism is now being widely accepted and normalized among millenals and the Gen Z of our Christian country.

As an agnostic myself, I wonder how religious views will look like in 40 years? Does it really only take one generation to extinguish the flame?