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June 25th, 2018, 12:01 PM  #1 
Newbie Joined: Jun 2018 From: UK Posts: 14 Thanks: 0  The probability of this being another probability question
Is 100%. Can someone tell me if below is a new idea? In a closed system, at time t+1 the set of all possible future events is smaller or equal to the set of all possible future events at time t. Because:  Things that are possible can become impossible  Things that are impossible can’t become possible  So the probability space shrinks with time A good example of this is the 2nd law of thermodynamics; heat death of systems etc... 
June 25th, 2018, 12:15 PM  #2 
Senior Member Joined: Oct 2009 Posts: 430 Thanks: 144 
Sure, makes sense. Not very deep idea though...

June 25th, 2018, 01:01 PM  #3 
Newbie Joined: Jun 2018 From: UK Posts: 14 Thanks: 0 
Sure but it’s widely applicable especially in connection with infinity and the old saying ‘anything that can happen will happen’. Rules out Boltzmann Brains for example https://en.m.wikipedia.org/wiki/Boltzmann_brain 
June 25th, 2018, 01:01 PM  #4 
Newbie Joined: Jun 2018 From: UK Posts: 14 Thanks: 0 
Sure but it’s widely applicable especially in connection with infinity and the old saying ‘anything that can happen will happen’. Rules out Boltzmann Brains for example https://en.m.wikipedia.org/wiki/Boltzmann_brain 
June 25th, 2018, 01:06 PM  #5 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 12,771 Thanks: 862  

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