If there is no communication whatsoever between Russia and the rest of the world (highly unlikely), then the network will fork. The main chain the rest of the world follows will lose the Russian hashrate, resulting in longer block times for a maximum of two weeks until the next difficulty retarget.
not really the case, it just means any russians making blocks are not seen, meaning that other nations mining pools get to submit their block result, meaning more rewards for the other nations to share with one less competitor nation
(less people at the party = more slices to pizza to eat amongst the smaller group)
imagine it this way
if there are 10 olympic runners each averaging a time of 9.5-10.5 seconds in a 100metre run.. only 1 can win
take one person off the track does not make the other runners run slower. it just means the chances of the 9 remaining runners winning increases. the average win is still the same average. but now 9 people get more wins when they run regularly
what does cause a speed up or slowdown. is if each of the runners are using more or less muscle(asics) then previous fortnight. meaning the average time over a fortnight has changed to be more or less then the needed average.
taking one competitor out of the race does not impact the speed of the other runners.
if one runner doesnt turn up. the other runners dont suddenly walk the 100m out of compassion for a lost competitor. the other runners still run at their same average speed. and now get a higher chance of winning per race
infact, with the remaining runners winning more often they can afford to build more muscle(asics) and run more faster. so the speed of solves can happen more faster.
OR they can enjoy their easier wins and tone down some muscle(asics) and run more casually. and decrease their speed
I've talked with a guy from Russia and he said more or less that an Internet ban if anything like that ever happens will not change much in Russia because the society can be divided in two groups:
people who never had a computer and don't care if it is there or not
people who are in the Internet for 8+ hours a day and these know how to use VPN and will still have access.
Russia will never go full retard to physically cut all the cables. The elites want to know what's going on but also want their subjects and servants to live in the dark ages. They will only restrict access and this won't stop people just like arresting TPB founders did not stop torrents.
here is the thing.
if putin wanted to, he could stop the citizen serving ISP's, meaning even if you have a VPN its useless if your router cant even connect to your ISP
whilst still allowing a public sector ISP to service the inner government routers
its not about IP banning certain sites. its about turning off ISP's that citizens subscribe to and have a landline/cellular network connection to that can be switched off.
i doubt putin would stretch that far to P!55 off all his citizens, but then again other countries have(kazahkstan fuel riots). so i wouldnt put it past him