With so many good altcoins around, do you think Bitcoin can cross $50k by Dec 2020?
Lol, where are those many good altcoins that you are talking about 
. Most of them have tanked real hard mate and let's be realisitc for once guys. How on earth do you want to see Bitcoin rise all the way up to $50k by ending of next year. This is highly impossible looking at the situation of crypto industry and with most countries trying to prevent its adoption. I'm pretty sure you know that market is very unpredictable that anything can happen in just a short period of time which is why people speculate Bitcoin prie, reaching $50K by the end of 2020 is not impossible specially that there will be an up-coming Bitcoin halving and if you were following the trend the price of Bitcoin always rise after the halving which is likely to repeat again for the 3rd time.