Otherwise, if you did copy and paste it, can you post the source and link to it, please?
How Does Blockchain Technology Work? by Nolan Bauerle
https://www.coindesk.com/information/how-does-blockchain-technology-work/Quora.com - Blockchain (database) - Can blockchain technology be hacked? Aug 1 2017
https://www.quora.com/Can-blockchain-technology-be-hackedSeems to be the only sources as far as I can tell. To OP's credit, they mention their sources in about the middle of their post. Just didn't bother to link them, it seems.
I would have liked any beginner's guide to Bitcoin to have begun with the Bitcoin Whitepaper, or at least suggesting preliminary knowledge of some sort. Might be a good idea for you to add a reading list to accompany your post.