There's no course to tale; you just need to be patient and hardworking to watch videos, read articles and texts in order to be aware of what you are engaging yourself into. As long as you know how any investment works, then you'd be fine to do so, especially regarding risk management. Many people are just curious because of hearsays that money is easily earned in this industry hut in reality there's no such thing 'coz if there is, imagine how many people are on their Lambo right now. What beginners should keep in mind is the fact that many investors quit halfway because they cannot sustain their investment. So better start with that.
At this time, is it possible for a beginner to learn bitcoin, where is it better, which courses are effective?
The question is are you willing enough to learn? Because when it comes to learning about bitcoin, everyone is capable to make it happen, be it young or old, newbie or a senior. As long as you have the enthusiasm to learn, everything will be possible. Just do your own research and familiarize yourself on the things that are associated with bitcoin. Soon enough, learning will be easier for you, especially if you become an active member in the bitcointalk forum. No need to study different courses, the forum alone is a good avenue to maximize your knowledge so you can interact intellectually with the other forum members.
Many people has the willingness to learn but lacking dedication to continue. They are easily being discouraged of the market price volatility wherein simply buying at a certain price point won't be enough to generate profit. There are these upward and downward market price movements which are highly changing from time to time and without certainty of occurence.Knowledge would be the best investment for sure.