there is achance for me to guess a key,no matter how small that chance is it do exist
Sure, the chance of you guessing a previously used private key is non-zero, but it is so unimaginably close to zero, that it is effectively zero for all intents and purposes.
this is it:the universe of figures is 10^3 and that of letters is 26^36,overall universe is 7.31^46.which means my chance is 1.42^-46 which is NOT zero and is not mathematicaly close to 0 this chance increases each time someone obtains a filled wallet.it is worth wasting 5minute of my free time and maybe yours(hihihi) just to say there are some lottery out there with fewer chance.