I've honestly been hooked to cryptocurrencies since i looked into it almost a year ago. Not just because of the profits but because it has the potential to change so much for the better. If I would have mined instead of buying the coins I would've made way less money and probably even lose some if i used my 1080 to mine. But its also probably due to higher electricity cost in my country. I see that my online retailers still have plenty in stocks but it says they only sell a maximum of 2 cards per person / company because of mining. Prices haven't gone up here (switzerland), but they also haven't droped (my 1080 costs the same as almost 2 years ago). The market is not over in 6 months, bitcoin is just correcting itself for now after that way too massive of a bullrun.
@vfighter Mining is a proof of work in cryptocurrency. Not all cryptocurrencies use it but some of the biggest like bitcoins do because it has kept the network safe so far.
Its pretty complicated if you go into the technical details, but to answer your question in simple terms:
When someone does a transaction of Bitcoins from point A to B it gets encoded in a mathematical way with other transactions together inside a block.
Miners (GPU or ASIC) have to solve that code with their hashing power (its pretty much a guessing game like typing passwords until it gets the right one). CPU's are too slow for this type of problem solving but there are cryptocurrencies made for cpu as mining aswell. Usually a stronger card for gaming is also better at mining bitcoin, but not always, before the gtx 10 series it was pretty much only AMD Cards that had a good Performance per Buck. The power consumption also place a role since these cards run at 100% 24 hours a day. The one who solves the block first gets rewarded with Bitcoins (right now 12.5 Bitcoins, drops 50% every 4 years). The difficulty of the code tries to match the Hashrate of all mining power so each 10mins a block gets mined. This can vary because of increasing or decreasing hashrate and the network takes time to change difficulty. There are many Pools so the reward gets distributed. This is all done so nobody can cheat the network. It hasn't been hacked since it started 9 years ago and is pretty much the strongest Network of Computers in the World. You need like 500 of the best supercomputers in the world times 10'000 to match the Hashrate of Bitcoins Network (probably a lot more now). And in order to manipulate anything in the Network you need 51% of the Network Power. There are currently almost 17 millions bitcoins circulating and the maximum there ever will be is 21million. Lost Bitcoins are forever lost and can't be recovered.
As soon as the Problem is solved, the lets say 1 Bitcoin you sent from A to B is now at B and recorded in the public ledger. So the network knows wallet A is now -1 Bitcoin and Wallet B is +1 Bitcoin. This prevents double spending which is also a problem in banking since it went digital but thats a easier problem to fix there since they are a centralized entity. Bitcoin is trying to cut out that middleman who in the end has too much power.
I urge people to look into more closely before calling this just a hype. When looking at the negatives of Cryptocurrencies look at the negatives we have right now. Bitcoin consumes a lot of Power? How much Power do all banks in the world consume and still get hacked? Cryptocurrencies are upgradeable, Banks are at their Limits.
Ofcourse it sucks right now if you wanna buy a graphics card but Its solving a way bigger problem we have right now. And who knows what the future holds maybe someday you'll be mining while you're playing.
If anyone wants to look more into it, i can recommend this Documentary:
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