[quwert95]

I really like this demo; it makes sense and was stepped through beautifully.

I would love to see a 'weaknesses' explanations about blockchains though, like how 'truthiness' is generated and speed of verification and distribution.

Well done.

[Natanael_L]

If the blockchain follows the rules in the code / protocol and it is part of the blockchain fork currently known to have the greatest amount of accumulated proof of work, it is considered canonical / real.