What about chinese exchanges closing at the end of september, will this cause the price to dip again or price has been already reflected for this?
I'd say it's already largely priced. All the panic sellers have already sold, I don't expect anyone to wait till the last day of Sep to dump then. But it's possible whales were driving the price up to exit slowly with more profit.
So the end of october we will know whether chinese miners will be banned or not from the China government 19th congress? Ok from this if chinese miners get banned then segwit 2x wont happen or vice versa?
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Out of the loop on this one, but I wouldn't expect China to ban bitcoin mining. If they want to prevent usage of cryptos, then delegalizing both exchanges and accepting cryptos as payment would be sufficient, while they could keep the benefits on letting the miners do their job:
1 - it transfers value from abroad into China (miners selling on foreign exchanges), so benefits the economy.
2 - having majority of hashpower on their territory, government could take it over if they ever need to (either to disrupt or attempt to destroy btc).
There's some more FUD from Ray Dalio, founder of the world's largest hedge fund
https://www.coindesk.com/bridgewater-associates-head-says-bitcoin-bubble/
USA and Japan already took large amounts of Chinese (and other) panic sellers anyway. Nobody is ever talking about Japan, even though they are huge, maybe even more than China. China is massively overrated in my opinion and when people slowly start realizing that the world keeps spinning even without Chinese and their corresponding market manipulation, then the trend will be continuously upwards again. Maybe if China WOULD ban Bitcoin it would be good for the rest of the Cryptospace.