You can't get this proper knowledge you are talking about without starting up bitcoin investment first if you have the basic knowledge about Bitcoin you can get started and gradually figure out other things along the line because it is when you are inside that you will know more about this bitcoin investment you can be waiting to figure out all concerning bitcoin before investing while you keep missing out other buying opportunity or by waiting to learn all you might get discouraged along this line you could also miss out by procastinating, investing into bitcoin is not as hard as it may seems bitcoin investment is easy when you get started it is when you have not started that you might be thinking to get all knowledge first you can get started already if your discretionary income is available.
And also someone that is investing for a longer time shouldn't get panic when the price of bitcoin drop for it will surely increase back above what you can't even imagine in future time .
I agree with you , I don't wish to take this argument further.
But whatever the case maybe, everyone has a different way or method of learning or knowing how to do things.
Personally I like to learn through or under the guidance of someone who has more or less experience, maybe so that I should avoid big mistakes. But whatever be the case it's ok for everyone to do things thier way.
What Gooner0 said is right, you can't get legible knowledge of Bitcoin investment by reading books or looking at market caps and analysis alone. You also need to make some practicals by creating your Bitcoin wallet and applying DCA strategy on your investments, the more you buy Bitcoin and send to your portfolio the more knowledgeable you become to Bitcoin investment.
While you invest on Bitcoin, it's essential to use DCA method because you will gain more knowledge when Bitcoin dip and when Bitcoin increase. DCA method also gives you the ability to constantly make profits the more Bitcoin continue to grow.