Bitcoin miners are paid with a combination of newly issued units of currency and the transaction fees for the transactions the miner includes in the block. The system is designed to initially reward miners with a large amount of newly issued bitcoin, because it started when bitcoin was not worth very much relative to other forms of money. Every four years worth of blocks, the amount of newly issued bitcoin awarded to miners is cut by half. This is how the system guarantees that there will only be 21 million units of currency. Over time, the value of bitcoin goes up, and the system bootstraps itself, steadily shifting the mining incentive away from newly issued bitcoin and toward transaction fees.

Mining difficulty is adjusted totally differently. Every two weeks worth of blocks, mining difficulty is adjusted so that the average time between blocks remains at ten minutes. Difficulty is adjusted either up or down as needed, with limits on how large the change can be. This means that there will always be miners, because as difficulty rises some may drop out, but then when difficulty drops new miners come in. This has resulted in an incredibly strong bitcoin mining ecosystem where competition drives the development of more and more efficient ways of mining bitcoin with as little power as possible. This bitcoin mining ecosystem has been running nonstop since the first block was mined in 2009, and there is no reason to expect it ever to stop.

Let's say we lost 75% of all hash power.

That means instead of 10 minute block times we have 40 minute block times. Instead of a 2 week difficulty retarget interval we have at worst 8 weeks. After the difficulty retarget we get back to normal.

8 weeks of temporary slow down is nothing compared to the 8 years that the bitcoin network has existed.

There will be a lot of problems if this happens:

1) We will not see any new coins and thus supply will reduce. If there is sufficient demand, this will boost the prices by huge margin.

2) We may see a situation where people will start hoarding all the coins. Since they are aware that new coins are not coming in the market, they will not sell the coins they are holding.

This is not going to happen practically. This is because a lot of people have already made huge investment for setting up the mining equipment.

Although this kind of situation is unlikely to happen, but if all the miners have stopped mining, then the whole bitcoin network will not be normal operation to all of our bitcoin cannot normal turn in and turn off, so the bitcoin will lose its value.

The whole bitcoin or system will collapse and if the prize gets lower and lower then the users won't have an time to use it.

If bitcoin ceases to be mined, then transactions within this blockchain price will cease to be processed. But do not worry, this most likely will never happen. Bitcoin has already won the trust of investors.

If miners stop mining bitcoin it's mean we Will have a big problem with bitcoin transaction because miners are one of the important factors that make transaction easier but you should not worry about that when you want to buy bitcoin because I sure that is Will never happen.

Let’s not assume everyone stops mining, but let’s say the largest miners who have dedicated warehouses full of miners stop mining. This would cause the network to come to a screeching halt, no blocks would be found until the block difficulty readjusts. This happens every 2 weeks. Bitcoin’s mining algorithm is about guessing random numbers, and hoping you get lucky. The mining difficulty indicates the threshold of a valid magic number. Any number less than the given difficulty is a valid block. Any number larger than the given difficulty is considered an invalid block by Bitcoin’s mining algorithm.

If all large miners were to stop mining, the mining difficulty would decrease (the magic number that determines block validity would actually increase), which means miners can now find a number larger than when large miners were mining and have the block be valid.

Then it would be a sad day for Bitcoin! There would be a lack of transaction verification. Essentially, Bitcoin wouldn’t work without miners.

Fortunately, anyone can mine. And while it might not be profitable or sustainable for some, it will be for others. It’s highly unlikely that everyone would stop mining Bitcoin, unless an alternative with value that exceeds Bitcoin should arise!

Happy mining, miners!

if there is no miner, the bitcoin transaction will be disrupted. and will not be stable, the blockchain system will not work properly. even going to die.

but mining will not stop, because mining profits are huge. every difficulty they face makes their profits bigger.