Ah, I love this game. The quintessential difference finding game. Calm, relaxing, beautiful settings, challenging. Amazing atmosphere for such a simple concept.
You can't get to Level 2237, here's why:
At Lvl. 2237 the defense of the stone is ~10^179. This means you would need a total pick power of at least that (just to touch it). Assuming you upgrade your Blacksmith power to the point where a 1500%(or whatever) Quality pick will get the job done, accounting for all the multipliers and bonuses, you need $~10^518 to buy the necessary upgrades.
To get that much money you need to mine a Lvl. 2272 stone every second for ~10^207 seconds. This is longer than the age of the universe. In fact, it's longer than the universe is predicted to last (effectively).
In short, you can't reach Lvl 2237 legitimately. I will happily share the calculations if you would like a detailed proof.
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