At least, I don't think so. Your hacker is a techie. Your hacker hasn't figured out how hard the problem is yet. Unlike a lot of workers, hackers will try very hard to refuse to give an estimate until they know for sure that they understand the problem. This may include solving it.
Most hackers are good engineers.
Still, it's an estimate, and you get what you ask for. So does the computer. You can hide it, but computers count from zero. Most hackers do by habit, also. Next time Next time, the flip side .