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Exactly the same number of transactions as it does now.
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how is it possible? Only 3 miners will mean a lot less block, and less block will be less transactions. How can be no difference?
You really need to do some research and find out how Bitcoin works. For someone with a 2013 Hero account, I'm very surprised you don't know the basics. The difficulty of finding a block is calculated to always keep block generation constant at 6 blocks per hour. If there is less hashpower on the network then difficulty will be reduced and the same number of blocks will be found. That is just the opposite of what happens everytime miners add more hashpower, the difficulty goes up and the same number of blocks are found.
Edit:
Trust summary for asdlolciterquit
This user's password was reset recently.
This user's email address was changed recently.
Oh, you bought the account that explains it.
Hihi, seems like you're wrong about him, his English was bad even in 2014, and that makes things even worse when taking into consideration he hasn't spent at least one hour to understand how bitcoin works in 3 damn years.
Nobody can ever kill Bitcoin. I heard that many tried to kill Bitcoin but they could not.
Never heard of somebody trying to kill bitcoin, can you give an example?
Bitcoin can be killed by the one who created it or bitcoin can be killed if every countries government control bitcoin or if they change the form of method from decentralized to centralized mode.
No it can't. Satoshi holds no special powers nor does he have a "self destruct" button available.
Actually, the most effective way I can think about in order to kill bitcoin, would be a worldwide legal arrangement settling mining and transfer illegal. Bitcoin would still exist, but no new would be created and people owning it would be completely unable to use it.
No, that's not the way to kill bitcoin, it's just a way of stopping it temporarily.
Once internet is up again bitcoin will revive.
And if the "evil government" wants to keep internet down forever we could easily find a solution to transmit data in another way.
Decentralized network model for example.