The blockchain potentially cuts out the middleman for these types of transactions. Personal computing became accessible to the general public with the invention of the Graphical User Interface (GUI), which took the form of a “desktop”. Similarly, the most common GUI devised for the blockchain are the so-called “wallet” applications, which people use to buy things with Bitcoin, and store it along with other cryptocurrencies.
It goes further. Ebooks could be fitted with blockchain code. Instead of Amazon taking a cut, and the credit card company earning money on the sale, the books would circulate in encoded form and a successful blockchain transaction would transfer money to the author and unlock the book. Transfer ALL the money to the author, not just meager royalties. You could do this on a book review website like Goodreads, or on your own website. The marketplace Amazon is then unnecessary. Successful iterations could even include reviews and other third-party information about the book.
The first wallet program, simply named Bitcoin, and sometimes referred to as the Satoshi client, was released in 2009 by Satoshi Nakamoto as open-source software.[10] In version 0.5 the client moved from the wxWidgets user interface toolkit to Qt, and the whole bundle was referred to as Bitcoin-Qt.[103] After the release of version 0.9, the software bundle was renamed Bitcoin Core to distinguish itself from the underlying network.[104][105]
When mining began, regular off-the-shelf PCs were fast enough to generate bitcoins. That's the way the system was set up—easier to mine in the beginning, harder to mine as more bitcoins are generated. Over the last few years, miners have had to move on to faster hardware in order to keep generating new bitcoins. Today, application-specific integrated circuits (ASIC) are being used. Programmer language aside, all this means is that the hardware is designed for one specific task—in this case mining.
Disclaimer: Investing in cryptocurrencies and Initial Coin Offerings ("ICOs") is highly risky and speculative, and this article is not a recommendation by Investopedia or the writer to invest in cryptocurrencies or ICOs. Since each individual's situation is unique, a qualified professional should always be consulted before making any financial decisions. Investopediamakes no representations or warranties as to the accuracy or timeliness of the information contained herein. As of the date this article was written, the author owns less than 1 BTC, and no positions in any of the other companies mentioned in this piece. Investopedia does not make recommendations about particular stocks. 
Real money is gold, silver, precious metals and gemstones, natural resources. Paper currency and coins use to be backed by gold or one of these other material commodities and was payable upon demand to any the person who had the dollar bill or coin currency, it was once written right on the Dollar bills and it was legal tender backed by the governments’ gold reserve! But corruption on an unprecedented scale took over and the general public was tricked into accepting a false standard of the economy where people blindly trusted another system which really didn’t benefit them. Just look at all the financial and economic chaos around you that has effective your lives over many decades and the political instability growing every day!
Many blockchain primers and infographics dive into the cryptography, trying to explain to lay people how "consensus algorithms", "hash functions" and digital signatures all work. In their enthusiasm, they can speed past the fundamental question of what blockchain was really designed to do. I've long been worried about a lack of critical thinking around blockchain and the activity it's inspired. If you want to develop blockchain applications you only need to know what blockchain does, and not how it does it.

Newer cryptocurrencies and blockchain networks are susceptible to 51% attacks. These attacks are extremely difficult to execute due to the computational power required to gain majority control of a blockchain network, but NYU computer science researcher Joseph Bonneau said that might change. Bonneau released a report last year estimating that 51% attacks were likely to increase, as hackers can now simply rent computational power, rather than buying all of the equipment.


Volatility. This very reason many speculators are attracted to Bitcoin is the same reason many potential users are hesitant to get involved. Users that look at Bitcoin as a speculative investment option are essentially gambling on the process, and the future price of Bitcoin is largely unknown. There are estimates that Bitcoin will both be worth pennies in a few years, while some predict that a single bitcoin will be worth $500k in three years. As new investors continue to invest and the market cap grows, Bitcoin’s price could become more stable.
It’s a combination of things. On the one hand, there’s a lot of money flowing into the sector, thanks to public and private initial coin offerings. (ICOs, as they’re called, are an unregulated way for companies to offer investors cryptocurrency rather than traditional shares of stock.) On the other hand, more companies are starting to experiment with how they might use blockchain for their business. In fact, 40 percent of respondents in a recent Deloitte survey were willing to invest at least $5 million on blockchain projects this year. Some companies are using them to experiment with shipping projects; others are using them for advertising networks. Then there’s the giant that’s about to step into the room. This spring, Facebook announced it’s setting up a blockchain team led by David Marcus, who previously ran Facebook Messenger, and Kevin Weil, who was previously Instagram’s product chief. Facebook also moved Evan Cheng from director of engineering at Facebook to director of engineering for the company’s burgeoning blockchain division.
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You first said it wasn’t copied but then you said it’s duplicated to millions of computers. Whats the difference between copying and duplicating? Your description of creating a word doc then emailing it to someone and waiting for the updated version from them is from 1999….google docs let’s you work on live docs – problem solved. Question…if an honest entry mistake happens on the blockchain why would you want that recorded on millions of computers forever?
The domain name "bitcoin.org" was registered on 18 August 2008.[15] On 31 October 2008, a link to a paper authored by Satoshi Nakamoto titled Bitcoin: A Peer-to-Peer Electronic Cash System[5] was posted to a cryptography mailing list.[16] Nakamoto implemented the bitcoin software as open-source code and released it in January 2009.[17][18][10] Nakamoto's identity remains unknown.[9]
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