How to halve bitcoin?

Could you please elaborate on the process of Bitcoin halving? I'm curious to understand how this significant event in the Bitcoin ecosystem actually occurs. Specifically, I'd like to know if it's an automatic process that's programmed into the Bitcoin network or if it requires some form of intervention from miners or developers. Additionally, I'm wondering what the economic impact of bitcoin halving is and how it typically affects the market price of Bitcoin. Finally, I'd appreciate any insights you have on how investors and miners should approach bitcoin halving and its potential implications. Thank you for your time and expertise in this matter.