Halving is coming up, and those who will invest later after the halving has happened, I will consider those people late to investing in bitcoins. Although there will still be opportunity for them to benefit, but just as said, it would have been better they started earlier like yesterday than tomorrow. The best opportunity to invest in bitcoins was last year when the price was really performing badly, people who missed that opportunity are making use of this year to catch up, any one who misses the halving is late. You are late does not mean no profit, but that the profit you are expecting to make on your investment is what would have been made already.