A growing chain of immutable transactions, linked & secured with cryptography, that is open & distributed to every member of the network.
the best way for noob get the idea what is bitcoin is first to explian them from where became peer to peer file sharing and what the reason for peer to peer file sharing.. it the only way no around this , ANTONOPOULOS the great also explain this in this way...
we have
1. centralized tech -- which mean everything move thourge central servers/entity...for example in money its banks and payapal and other they are middle man between A and B -----> A -- centralized(middle man/banks/paypal/governemnts) -- B, file sharing like torrnet and other was centralized mean all the info like movies and mp3, software, music and other but governmnets pretty fast locate this middle man central servers and shut them down, then people became more smart and created
2. decentralized tech which mean everything is spread between the users/servers....its called peer to peer which mean there are no main few servers/entity hold all the info mp3,movies,music,software...now its spread between computers around the world, this is why it called peer to peer, and now the governments need to shut down around 500 million private computers around the world and its impossible,
peer to peer put out the middle man/few servers/entity between A and B , now A and B commuincate directly without main severs...
computer A download software from few main servers and computer B and computer C and others = centralized tech
computer A download software from computer B while computer B download movie from computer D and so on = decentralized tech
the nature of peer to peer tech is some peer hold more some less.
3. distributed tech -- its like peer to peer but each peer hold equal info/whatever to other peer in some sort of level,,,compare to decentralized tech where one peer can hold much more then other peer.
AFTER ALL THIS HUMEN MIND CAN UNDERSTAND WHAT IS PEER TO PEER MONEY BECAUSE HE KNOW FROM WHERE IT CAME...
the idea of bitcoin came from peer to peer file sharing and most off the time activists behind peer to peer tech...
now after the mind get what kind of techs other there and know from where bitcoin come and it cannot be other things its called peer to peer cash and came from peer to peer file sharing , the question is left is how A= peer/wallet transfer money to B=peer/wallet while B wallet/peer send to D wallet/peer...
because after he learned that in peer to peer there is no central entity/servers that everything go, how it happen compare to file sharing..
its called blockchain,,,more clear block -- chain
and its no simple way to explian this its must to be learned the other who say its possible to explian this fast dont really understand blockchain its like to explian how car work..
ANTONOPOULOS have great videos on this , but the smartest in the game was there when the papers was out and was know its not scam and its peer to peer file sharing with twist called blockchain,,,,which all this techs was out there just some people mixed them and nothing new about them for sure.