The most popular games on mobile devices are casual, people like playing simplistic stuff for a bit. But more deeper core gaming experiences can also do well on Android. There are core games that have hundreds of thousands or millions of downloads.

If Linux has been growing, it doesn't appear to be in a signficant way. If Linux ever become a popular OS, I don't think its gonna happen as a PC OS competing with WIndows.

And yet the deeper core experiences aren't clearly outweighing the casual, that market is making tons more than the dedicated one in terms of downloads and profits.

It's never really been significant to those who never cared nor wanted to use Linux, but those that do care can spot the growth throughout it's history quite easily. 

Mate Windows isn't going to be around for hundreds more years, I think we should accept that no one company lasts for all of time let alone holding some form of control, times changes and that time will come to MS and the OS space in general.

Edit: reminds me of an argument I had with a computing professor writing articles in a journal back in late 90's, he was adamant that linux would be the dominate desktop OS within 5-10 years and that MS would no longer exist. I outlined the reasons this would never occur, at least in the forseeable future and he laughed and even used my quote in one of his articles as an example of someone that didn't obviously understand the trajectory of linux (FYI, I was a linux admin trainer at the time). I wish I had kept copies of those articles as the same is true now as it was back then.

If Linux has been growing, it doesn't appear to be in a signficant way. If Linux ever become a popular OS, I don't think its gonna happen as a PC OS competing with WIndows.

Well, according to Steam's Hardware survey (which ain't perfect, but still showing trends), their Linux share was 2.02% in February 2013, 1.02% in February 2015 and 0.84% in May 2016.  

And yet the deeper core experiences aren't clearly outweighing the casual, that market is making tons more than the dedicated one in terms of downloads and profits.

It's never really been significant to those who never cared nor wanted to use Linux, but those that do care can spot the growth throughout it's history quite easily. 

Mate Windows isn't going to be around for hundreds more years, I think we should accept that no one company lasts for all of time let alone holding some form of control, times changes and that time will come to MS and the OS space in general.

Do you laugh back at him and revel in him being wrong each day like some personal vendetta or something?, or do you let it slide and move on with life?.

I'd guess with how you called my opinion as stupid would likely be option 1 towards your professor.

No I don't and I didn't call your opinion stupid, just plain wrong and ill informed. However you did make a dumb statement which I called you out on.

Doesent matter if casual outnumbers the core market on Android. The core audience on Android is viable and growing. Is Linux gaming growing? Its not significant according to Steam.

My concern isnt what people will use hundreds of years from now. At some point Windows may go free to maintain its marketshare.

You call it ill informed because you don't think Linux is growing despite the changes that have clearly occured over the past 15 years.

No, you seem to think one is going to die and the other isn't, I;d call that the dumb line of thinking.