3 ms·

Most of the Drake Equation factors are fractions in the range [0, 1]. So you do know a lot about the range of the variable.

• mindslight 18y ago
  But that's just self-deception facilitated by using a linear instead of a log scale. It's easy to choose a conservative "really small" number of 1% or .01%, but what's to say that you're still not off by many orders of magnitude?
  • yummyfajitas 18y ago
    In simple terms, this bound tells us that the probability that aliens exist lies somewhere in [0,1].
    • dejb 18y ago
      By definition all probabilities lie in this range. It doesn't change the fact that within this range of R (Real Numbers) the number of logarithms are uncountable. In simple terms... for every real number >1 (let's call that number x) the number 1/x also exists. Mind blowing huh! .. Also I was primarily talking about the TTAPS equation which seemed to be the main focus of the parent's threads.