Knowing 2021 Written by Goro, March 10, 2021 The Great Filter which per our model ("Dark Skies 2021") is a Martian event starti... THE REST IS PREMIUM CONTENT Please SIGN UP - or RENEW subscription. Have an active subscription? Please LOGIN... (NOTE: If you already signed up, currently logged in, and yet seeing this notice, it means your subscription has EXPIRED. Please RENEW!) Username Password Remember Me Forgot Password