Please guestimate for me...

[mandica]

It will take to the end of the universe to find the key. 120 PH is too small. You all the electricity on earth to drive all the hashing ower and take billions of years to find one key.

[Kprawn]

Well if we exclude your "lucky" from the equation, then we can talk about something near.... infinite?

btw do you have some special interest on that address?

That is one of the old addresses where they had the DPR seized coins, but it's empty now... well close to it. { 0.0354886 } At one stage it was one of the richest addresses around,

with 144,341.57153795 BTC  .... In any way, if you managed to Bruteforce that private key and you were successful to move those coins, you would have been the target of

all the SPECIAL 3-letter agencies in America.    .... rather target Satoshi's coins... the bounty would be bigger. 

[Blue_Tiger73]

It is all about luck pretty much. You could find it in like 1 hour or it may take you an infinite amount of time to find it.

[Amph]

It is all about luck pretty much. You could find it in like 1 hour or it may take you an infinite amount of time to find it.

again no, this isn't 50/50 ratio, this is where luck is so unlikely that there is almost no luck involved, the result is clear

which is a big waste of time, it's not a dice game or betting site where you hope to win after two rounds..

[anthonycamp]

into this case hacking its a brutal looney thing that can not be done

[franky1]

It is all about luck pretty much. You could find it in like 1 hour or it may take you an infinite amount of time to find it.

again no, this isn't 50/50 ratio, this is where luck is so unlikely that there is almost no luck involved, the result is clear

which is a big waste of time, it's not a dice game or betitng site where you hope to win after two round...

correct
blue tiger said could be an hour or infinity..

well infinity is
5284965330627430000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000 years

so 50% 'luck' will still take
2642482665313715000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000 years

so 10% 'luck' will still take
5284965330627430000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000 years

so 1% 'luck' will still take
5284965330627430000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 000000 years

so 0.00001% 'luck' (10million to 1 odds) will still take
5284965330627430000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 0 years

seriously!! the number is so huge. even the chances of you hitting a random address with coins in is many millenia.. let alone that random address being the specific one that you were hoping for

[Betwrong]

It is all about luck pretty much. You could find it in like 1 hour or it may take you an infinite amount of time to find it.

again no, this isn't 50/50 ratio, this is where luck is so unlikely that there is almost no luck involved, the result is clear

which is a big waste of time, it's not a dice game or betitng site where you hope to win after two round...

I agree. Although I do think that in a dice game the chance of winning a bet is always 50/50, I mean even with 0.01% chance in reality you whether win or not. ... But here we have a bit different situation because the chance of winning is much less than a trillionth of a  trillionth of a percent.

[Mickeyb]

With all these explanations above, who the heck would be trying to brute force the private key! I mean if you need such a luck, you are better off just playing a lottery. You will probably win it faster and you are going to get more money most probably!

[Bitware]

This is why they are trying to regulate and license encryption so that it outlaws it for regular people. They can't break strong encryption. Not even governments with unlimited financial, technological, and academic resources.