Hi Lex, Thanks for showing the equation when you two talk about the number of habitable planets.. Joe Rogan sometimes (unfortunately) neglects to show us viewers what you´r looking at/ talking about.. It really helps the understanding, you know..So big thanks for that, Love from Denmark :-) <br><br>As i side note i also want´s to say thanks for your videos, they´r really cool, but very long.. So again thanks for throwing an outline, so us viewers can sort between the areas your talking about.. Love it :-)  Keep up the good work mate.<br><br>-Max