As it is said - the best time to buy BTC is the current day we are in
And if we have money that we wish to invest and we're ready for it.
There are no perfect entries, because each one would become perfect if we hodl long enough.
Someone who's trying to find the perfect entry will never find it. All they'll find is perfect disappointment that they have never bought today.
Waiting for the perfect entry before investing in bitcoin and build a portfolio is a bad strategy. Because the perfect timing might never come and while you continue waiting for the perfect timing, you are wasting time to build a portfolio and accumulate. If we have money to invest in bitcoin there is no time to wait is just to invest in bitcoin and continue accumulating consistently with a perfect strategy.
People who wait for the perfect time to invest in Bitcoin are either unserious people or traders. Someone who is interested in Bitcoin investment can not wait for a perfect time to invest because he or she would know that, no time is perfect to invest in Bitcoin so long as DCA is concerned, because it will help one to invest at any given time regardless of the price. Moreover, since Bitcoin is a very volatile asset and its volatility is unpredictable so waiting or hoping for when it will Dip before investing means they are ignorant of this fact though some are not, it is just how they choose to go about it which is a wrong way.
If you like to buy Bitcoin and invest do it immediately and don't wait, and if you don't like it forget about it and stop giving excuses of the wright time to buy Bitcoin,cos you don't know when your waiting will end, every time is always a wright time to buy and invest in Bitcoin, Bitcoin waits for nobody, then why wait for the price of Bitcoin to drop , it shows signs of unreadiness to buy Bitcoin, because an easy method is there for whoever that wants to start buying Bitcoin and accumulating it, can use the DCA method for a bit by bit purchase of Bitcoin for a long-term of 4 years -10 years without any effect on your income, as long as your monthly income can take care of your monthly expense, Bitcoin investment can also be made from there.
I have come to understand that people will always do what they want irrespective of what's at stake, because if something is important to someone, he must make time for it. No body is too busy to do what they want, and that's applies to Bitcoin also.
Anyone that truly have faith in Bitcoin and it potential in the future, will always invest in Bitcoin from his monthly or weekly income no matter how small his discretionary income is, but anyone that doesn't want to invest will always have a reason why it's not good to buy Bitcoin now.
If the value of Bitcoin is up, he will be saying that it's too expensive that it should drop a little bit in value before he will buy, if it's down, he will say that it's too risky to invest in Bitcoin now that it might dropped to zero, so their is no point convincingly anyone to invest in Bitcoin because it's benefit is too obvious for all to see if you can buy and hold for a very long period of time.