If you've been looking for an easy explanation of Proof of Work to give your friends, this might be the one. It gets the details right and doesn't say stupid stuff.

The mining simulator is particularly helpful. Took me ~250 attempts to mine a block with 3 leading zeros.

. I'm surprised I have not heard of this website before, because it seems pretty good. Looks like it launched in June 2025. Tom seems to still be putting up new content: there's a 

 that was published this month, and last month a very nice 

bitcoin

bitcoin_beginners

bitcoin_Mining

If you've been looking for an easy explanation of Proof of Work to give your friends, this might be the one. It gets the details right and doesn't say stupid stuff. 

It covers things like:

- what is a hash
- how mining solves the double-spend problem
- why mining is more like a lottery than a math problem

![](https://m.stacker.news/136387)

![](https://m.stacker.news/136388)

The mining simulator is particularly helpful. Took me ~250 attempts to mine a block with 3 leading zeros.

![](https://m.stacker.news/136389)

The about page for [bennet.org](https://bennet.org/) describes itself as something between [Wait but Why](https://waitbutwhy.com/) and [Learn Me a Bitcoin](https://learnmeabitcoin.com/). I'm surprised I have not heard of this website before, because it seems pretty good. Looks like it launched in June 2025. Tom seems to still be putting up new content: there's a [Raspberry Pi Node guide](https://bennet.org/learn/building-a-bitcoin-node-with-raspberry-pi/) that was published this month, and last month a very nice [explainer BIP39 mnemonics](https://bennet.org/learn/how-secure-is-your-bitcoin-wallets-mnemonic-seed-phrase/).