Post
Topic
Board Bitcoin Discussion
Re: What would you do if you generated a Bitcoin address which had 100btc in it.
by
DannyHamilton
on 05/11/2013, 13:05:08 UTC
That's a small chance. But,, it can still happen..which kind of scares me.
If you're scared of this, then you sure as hell should stop using banks and credit cards.

Because the chance of someone guessing your credit card details, AND your online banking credentials (AND winning the Powerball twice in a row) is still much, MUCH larger than someone accidentally generating your bitcoin address.
The chance of an asteroid destroying earth or a nuclear war is way higher.
Or getting struck by a lightning...twice in a row.
Those are easy. Think of something unlikelier that is likelier than a collision.

Ok, new data, will recalc everything:

  • probability of getting struck by lightning in any given year: 1/280000.
  • probability of taking a shit at any given point in time: 1/(60*24) = 1/1440 (assuming you take a crap every day and the actual process takes 1 minute)
  • probability of getting struck by lightning while taking a crap in any given year: 1/(280000*1440) = 1/1.47E11 = 2.48E-9
  • probability of taking a crap while being in a situation where being struck by lightning can actually occur = 1/1440 = 0.25 = 1.74E-4
  • probability of finding a collision: 1E-65
  • getting hit by lightning while taking a crap for how many years in a row is equally probable as finding a collision: log(1E-65) / log(1.74E-4) = 17.3

is my math roughly correct now?

If so, I can say: "Finding a collision is about as likely as being struck by lightning while taking a crap every year for 17 years in a row".