Yes, most systems that rely on cryptography do, including traditional banking systems. But quantum computers don’t exist yet, and probably won’t be around any time.
It is impossible to easily change the Bitcoin protocol. Any Bitcoin client that does not conform to the protocol cannot force other users to follow its own rules.
The fact that the protocol and cryptographic rules used by Bitcoin are still working well after so many years is a good sign and shows that the concept is well designed.
Bitcoin technology, including its protocol and cryptography, has a strong security record, and the Bitcoin network is perhaps the largest distributed computing facility in the world.
In the early days of Bitcoin, anyone could use their computer’s CPU to find new blocks.
Mining creates a competitive mechanism equivalent to a lottery, making it extremely difficult for anyone to continuously add new blocks of transactions to the blockchain.
It is not a waste to consume energy to secure and run a payment system. Like any other payment service, using Bitcoin incurs processing costs.
Anyone can become a Bitcoin miner by running software on specialized hardware. The mining software listens to transaction broadcasts over the P2P network and performs the appropriate tasks to process and confirm these transactions.
Mining is the process of expending computing resources to process transactions, ensure network security, and keep everyone in the network in sync.
Only full node clients like Bitcoin Core require longer synchronization times. Technically speaking, synchronization is the process of downloading and verifying all previous Bitcoin transactions on the network.
It doesn't matter. The bitcoins will appear in your account the next time you open your wallet program. The bitcoins are not actually received by the software on your computer, they are added to a public master account shared by all devices on the networ
Bitcoin transactions can be done without fees, but transactions without fees may take days or even weeks to complete. Although transaction fees may increase over time, they are usually a small amount.
Receiving payments with Bitcoin is almost instant. However, there is an average delay of 10 minutes before the network starts to confirm your transaction by including it in a block and before you can spend the received Bitcoins.
It could happen. But for now, Bitcoin remains the most popular decentralized cryptocurrency to date, but there is no guarantee that it will remain that way forever.
Only a small fraction of all bitcoins ever issued are sold on exchanges. The bitcoin market is highly competitive, meaning the price of a bitcoin will fluctuate based on supply and demand.
This is a chicken and egg problem. In order to stabilize the price of Bitcoin, more and more companies and users need to develop a large-scale economy.
What is unique about Bitcoin is that there are only 21 million bitcoins ever created.
Some early adopters own large amounts of Bitcoin because they risked their time and resources on an unproven technology that was barely used and harder to secure.
A Ponzi scheme is a fraudulent investment operation that pays investors using their own money, or uses new investors' money to pay old investors, rather than using the company's own operating earnings as returns.
A rapid rise in price does not constitute a bubble. An artificial overvaluation that leads to a sudden downward correction will constitute a bubble. The fluctuations in the price of Bitcoin based on the choices of thousands of individual market participan
