- Why would people invest loads of money in BTC after the halving and not before?
I don't know whether you have data to proof that people actually buys more Bitcoin after halving? From my experience and observation I think that people buys more Bitcoin before halving, because when halving is happening Bitcoin supply is cut into half, meaning that the scarcity will make price to increase. So ideally people will know that it's more profitable to buy before halving, knowing that after it that price will keep increasing till it hits ATH. So correct me if I'm wrong, because this is mainly based on my personal observation.
Actually that is happening when hype is going to happen that's why we see a lot of people got FOMO at that time since they don't want to be left behind on the event happening that's why we can assume that more buy orders really happen when halving happen plus other contributing factor is the greed feeling is high for people at that time that maybe the reason why bitcoin pump when halving.
We may not know the 100% accurate answer with this but what it shown right now that when halving came to many people discuss about positive things to happen with bitcoin that's why to many people are convince to buy and hold. But let see what will happen for this year halving since we can speculate if there's something good will happen or we will see different condition right now and bitcoin will remain like this despite of this long time event awaited by a lot of people.