Under the condition of generating a coin in 10 seconds, 9pcs (+ I do not know when there is a change in the reward), but imagine that it is permanent. at the moment, 1 945 044 coins have been extracted from the start. still need 98 million. Means to get 98 000 000/9 = need 10 888 888 blocks = next (block generation 10 seconds) goes out = 10 888 888 x 10 = 108 888 880 seconds = 1 814 814 minutes = 30 246 hours = 1 260 days required Well, of course, it's likely to decrease the reward for the block, which we really do not know) =) I do not fancy at least for a bit)) well, actually 3.5 years.