RE: What bitcoin ACTUALLY did last halving. Hint.. It wasnt as grand as some will have everyone believe.
The way I look at it is like this. I was interested when Bitcoin was around $12-13, but I didn't have much time to look into it or much funds to potentially lose. When I saw it going up I thought it was great, but by not holding BTC it didn't matter too much to me. Fast forward to when I saw it spike to $1000+ I kick myself in the ass every time I talk about it. I used to tell my friends about Bitcoin just as a conversation topic but whenever I see them now we all say that we should've taken the plunge. The price hasn't gone down since the first halving and I don't think it will go under the price after this halving either. With that said, it's possible, but not probable that people will be able to make a crazy profit off the day of the halving.
BUT if you have some spare funds that you don't mind losing, I wouldn't hesitate to buy BTC with it. From $12 to $1200 is 100x. In a years worth of time this an insane return on investment. Even before that time you could have taken profit almost at any point. With this said, this time around I will take the risk. I've learned that I'd rather take a risk and deal with it not working out rather than not acting upon it and regretting that I could've changed my financial situation tremendously.