Maybe yes because humans are also live when there is no bitcoin and bitcoin change us little but if bitcoin is 0 than people change their living style and can survive without bitcoin.

I am writing this post and present bitcoin price is 8215.03USD and maybe it goes up to 12kUSD in march. Waiting for march...

Maybe yes, bitcoin is like a bubble because we don't know when it's price go up and down we can only make a suggestion on this and bubble is also same as this.

It is impossible to say it's time to buy bitcoin or not but you can hold some bitcoin at present for future or if bitcoin rate go below u will not feel so sad.

I am interested to get udemy course

Yes bitcoin mining is profitable in increasing in bitcoin price suppose that, You have mine 1 btc in this year or in the..

Next year the btc is become higher then....... i know u understand what do you want to say ....

Yes, because the bitcoins are legal digital currency and you can exchange legal currency with legal currency

There is no government which tells you why are you exchanging this currency with Bitcoins.

Maybe buying is better than mining because if u buy 1btc in this year or sell this 1btc in next year u will get lot of profit because btc cost graph is always going higher