Passive income is a process of having an income without such work. This includes investments in bitcoins, ethereum, altcoins, real estate, mutual funds, bonds, etc. Mining, in my opinion is included because you just buy a hard drive and let it mine for you. Generating passive income means that you must invest in any of this either 1 or more.
Yeah I'm full positive about mining because it is more or less passive income generator only. There are so many things around with which we can start our passive income but I see the mining as fluent passive income because you don't have to do much about it but just set the things up and let it run on its own and credit your accounts many times in a day! I mean who would not want that kind of income to generate. But the big things come at a cost and here the initial set up cost is a lot and now day we need bigger and stronger miners so I guess that problem must be overcome first to start with the things. Anyway good way to add up in passive income and always better to keep it solid one.
The passive income with bitcoin is very good and it is very simple. in fact bitcoin make it very easy that any body can generate a passive income with bitcoin. you to just buy some bitcoin and make a sense of the market that when the value is falling and when the value is rising and you have to make the best prediction also. buy bitcoin when the value is down and use them when the value is high but you have to make sense a best one.