# Big Coins Can Be Fun For Anyone

In 2009, it had been 50. In 2013, it had been 25, at the time of writing it is 12.5, and sometime in the middle of 2020 it will halve to 6.25. .

At this rate of halving, the entire number of bitcoin in circulation will approach a limit of 21 million, making the currency more scarce and precious over time but also more expensive for miners to make.

Here is the catch. In order to get bitcoin miners to actually earn bitcoin from verifying transactions, two things have to happen. To begin with, they need to confirm 1 megabyte (MB) worth of transactions, which can technically be as little as 1 transaction but are more often several thousand, depending on how much information each transaction shops.

Second, in order to add a block of transactions to the blockchain, miners should solve a intricate computational math problem, also called a"proof of work." What they're doing is trying to come up with a 64-digit hexadecimal number, called a"hash," that is less than or equivalent to the target hash.

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In other words, it is a bet. .

The difficulty level of the most recent block at the time of writing is about 7,184,404,942,701. That is, the chance of a computer producing a hash below the goal is just 1 in 7,184,404,942,701 less than 1 in 7 trillion. That level is adjusted every 2016 cubes, or about every two weeks, with the goal of keeping rates of mining constant.

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The reverse is also correct. If computational power is taken from the network, the difficulty adjusts downward to earn mining simpler. .

"Say I tell three friends that I'm thinking about a number between 1 and 100, and that I write that number on a sheet of paper and seal it in an envelope. My friends don't have to guess the exact number, they simply must be the very first person to guess any number that is less than or equal to the number I am thinking of.

"Let's say I'm thinking about the number 19. If Friend A guesses 21, they shed because 21>19. If Friend B guesses 16 and Friend C supposes 12, then they've both theoretically arrived at workable answers, because 16<19 and 12<19. There's no'extra credit' for Friend B, even though B's answer was closer to the target answer of 19. .

"Now imagine that I pose the'imagine what number I'm thinking of' question, but I'm not asking just 3 friends, and I am not thinking of a number between 1 and 100. Rather, I am asking millions of prospective miners and I'm thinking about a 64-digit hexadecimal number. Now you see that it's going to be quite difficult to guess the ideal answer." .

If 1 in 7 trillion doesn't sound hard enough as is, here's the catch to the catch. Not only do bitcoin miners have to come up with the ideal hash, they also have to be the first to perform it.

Because bitcoin mining is essentially guesswork, arriving at the right answer before another miner has everything to do with how fast your computer can create hashes. Just a decade ago, bitcoin miners can be performed competitively on normal desktop computers. As time passes, however, miners realized that pictures cards commonly utilized for video games tend to be more effective at mining than desktops and graphics processing units (GPU) came to dominate the match.

### About Is Bitcoin Mining Profitable

These can run from \$500 to the tens of thousands. .

Nowadays, bitcoin mining is so competitive that it can only be done profitably with the most up-to-date ASICs. When using desktop computers, GPUs, or older models of ASICs, the cost of energy consumption actually exceeds the revenue generated. Even with the newest unit available, one pc is rarely enough to compete with what what miners call"mining pools." .

A mining pool is a group of miners who combine their computing power and split the mined bitcoin between participants. A disproportionately large number of blocks are mined by pools rather than by individual miners. In July 2017, mining pools and companies represented roughly 80% to 90% of bitcoin computing power. .

Between 1 in 7 trillion chances, scaling difficulty levels, and also the massive network of consumers verifying transactions, one block of transactions is confirmed roughly every 10 minutes. But its important to keep in mind that 10 minutes is a target, not a rule.

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The bitcoin network redirected here can process about seven transactions per second, with transactions being logged in the blockchain every 10 minutes. As the network of bitcoin consumers continues to grow, but the number of transactions made in 10 minutes will eventually exceed the number of transactions which can be processed in 10 minutes.