I hear a lot of discussion around BTC halving that is expected in May 2020.
Many people are confident that this event will trigger the next bull run.
What is the logic behind this?
The logic is, less availability of bitcoin, of course. Good 'ol Supply and Demand.
Of course, just because there will be half production of bitcoins, doesn't necessarily means the market will suddenly value bitcoin twice as much. For starters, there is the already mined bitcoin in circulation... (about 18 million of 21).
As you can see, every time this occurs, price should rise less and less. Of course deviation based on human behavior occurs, but things will find its natural course.
The bitcoin price is logarithmic, it should be reducing its price increase with time. It will never reach absolute stability, because fiat money is devalued intentionally, so after a century its price should be going in proportion to the fiat losing value, ie. 2% yearly. That would be the top right most part of the price chart for bitcoin's price lifetime.
In short: Expect it to go up, but each time less than before.