The Bitcoin block mining reward halves every 210,000 blocks, the coin reward will decrease from 12.5 to 6.25 coins.
This means that there's an increase in the difficulty when acquiring or mining bitcoin. Will this event gives us assurance that the value of bitcoin will double or even triple by next year?
As what it manifests during the previous halvings, the prices of bitcoin really skyrocketed at a very unpredictable pace and lots of bitcoin investors' lives were changed. So if we try to look ahead of us in the distant future, there's really a possibility that one bitcoin will have a value of a $1m? or will it really depend on the acceptance and adaption of the society to bitcoin that can give value to the currency?
source:
https://www.bitcoinblockhalf.com/