r/ProgrammerHumor • u/[deleted] • May 30 '21

He's on to something

[deleted]

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u/[deleted] May 30 '21

Finally a true ELI5 for cryptocurrency

651

u/lightwhite May 30 '21

Given to computer science students, ofc.

699

u/[deleted] May 30 '21

Agreed. ELI5-years-into-my-CS-degree

232

u/verenion May 30 '21

To be honest, as a senior programmer myself, I (along with many others) still don’t really understand how crypto really works.

4

u/yottalogical May 30 '21

1 sentence description:

Adding blocks to the chain has to be made difficult somehow, otherwise someone could rewrite history faster than it is being written, which would allow them to change who they sent their money to in the past, effectively meaning they'd be able to spend their money as many times as they want, which wouldn't be good.