Oops.

It appears that I must have bumped the 3 year time slider when trying to take that screen shot. And now that I notice that ... I can't edit the post. Here's the correct screen shot:

Difficulty used to be 1 in 2009, you were able to mine with any PC, and each time you hit a block you would receive 50BTC, which is about a million dollars today.

Crazy really, as at the time it was almost worthless because you couldn't exchange it for anything

Oh no, it's downhill from here.

Dang! If the difficulty gets too high, I'll have to stop mining in my head.

I hate using paper.

Stats:

Difficulty:

Here's an article that has some general info about bitcoin mining difficulty.

Network Difficulty, Share Diffiaculty and Hash Functions https://hashrateindex.com/blog/crypto-mining-network-difficulty-share-difficulty-and-hash-functions

Hashrate:

ASIC Prices:

A great tool to monitor the progress over the 2,016 block epoch is fork.lol's Difficulty Retarget chart:

And some great Dashboards, overall:

заметил один прмцедент... когда сеть загруженная блоки ловят только пулы с более 10% мощи сети... это плохо...