Its even impossible to restore lost private key, how much more taking lots of numbers and letters.Thats why private key is designed like that to secure your wallet from thief.If thats possible you need a long time before you got the right private key.
neliawesome Did you read the part where I said, "This would be like the process to find the new block in mining"This would be like the process to find the new block in mining, anyway you can try the times you want in order to find it.
It means that a mining equipment could do it...
I agree with this, its up to you. If you don't secure your private key that much..then, i think your btc will be stolen.