so seen people saying halving all the time? what is it so when bitcoin halving the price reduce or rise?
halving will halve block reward for miners, so to get profit, price of course will have to go up, or miners will leave their jobs and this would be very bad news for bitcoin, but i think that price will rise and bitcoin will be alive for next 10 years for sure, and no if you think that halving will reduce price of bitcoins then no, it won't
Miners "leave their jobs" all the time and it's not very bad news for Bitcoin.
This is a graph of difficulty (and network power). Every time the red line goes down, instead of up, it's because difficulty has fallen. Difficulty falls in response to the computational power of the network falling - which happens because (some) miners stop mining. When difficulty falls it makes mining
more profitable - prompting new miners to start mining.
The current miners purchased their mining equipment in full and certain knowledge that the block reward reduction - the halving - was going to happen. The halving is not going to come as any surprise to them. They will have taken it into account when determining whether or not to purchase their latest mining gear. When the block reward reduction occurs, most miners are not suddenly going to find themselves looking at an unexpected and difficult situation. They're going to be facing something they've been expecting, that they took into account when calculating ROI on their mining gear.
I don't think anyone is seriously arguing that the halving will result in prices
falling. Some people - including me - have been arguing that (a) since the halving is known prices already largely reflect it, and (b) some of the more "enthusiastic" traders may well be disappointed by the actual price when the halving occurs. For some reason this is seen as being bearish, as if all the other reasons to be bullish somehow ceased to matter.