Now that BTC has hit $29k, that's right, it's never too late to start something. We can see that the highest price of BTC was two years ago in 2021 and reached $70k, that means at the current price we still have a chance to at least get a profit in the next few years when BTC exceeds the price in 2021. Honestly looking at this condition I think this is a pretty good opportunity, and I will save a little bit of my expenses to then store more BTC and hold it. We'll see, stay consistent and be patient for something bigger.
Yeah, i also think the same that if BTC failed to cross $100k target in the next bull run but at least on the way to that target it will at least achieve $70k because one thing i noticed is after every halving in every bull run BTC sets new All-time high price. Like in the following graph we can see that after every halving it really make new ATH. 
Which means, it's really never too late to enter into BTC market now at the current price of $29k-$30k. But as previously mentioned members has already stated and you also tried to shed light on the difficulty level of holding BTC for that long period. Which obviously is the main thing i mean if holding would be easy then everyone would rich by now.
My definition of this world is, we all are giving exams and each person have different questions (problems or hurdles) to solve (to overcome) so everyone makes their own decisions based on their knowledge and write the paper's questions accordingly. Means, one preferred to sell there BTC for 0.06$ (like the one in the picture of tweet) while at the same time another person was begging peoples to buy BTC of only $1.
The picture actually explains it but though I have not actually observe how fast the price always moves after halving, though if the graph is always accurate on the btc movement after halving, is going to be a big move breaking the all time high, is really good buying some amount of Bitcoin before it breaks the all time high.