farming :not financially viable?

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well here we are ,sitting here posting discussions,writing comments,why i do it?partly to earn money and partly to satisfy our intellectual self,but in this we are ruining our health,truly speaking i really think that in the near future it's not money which will be driving us,because the driving force for us is food and not money!,i used to believe that money is everything till ,but recently i met a preacher who alarmed me about this distinct scenario where people will be killing each other not for money but for food,as earth is a dying planet,where water is a diminishing quantity,so we will come to a point where water will be equivalent to gold,so i really think that rather than eyeing real estate,or any such business,it would me much better if you could buy lands which are lying barren somewhere in the countries,because i believe that these barren lands will be like gold for their respective owners,and man really came into this world,and it was farming which helped him to socialize and build towns and created civillizations,and ,at near end of the world ,it will be farming again which will be the deciding factor,so,guys decide for youself!