Adding to that I would say it's a little bit luck with an eye for disruption. Look at slack. We thought people had all the stuff they wanted but slack came out

Adding to that I would say it's a little bit luck with an eye for disruption. Look at slack. We thought people had all the stuff they wanted but slack came out of nowhere. We thought skype/sms/gtalk was good enough and came WhatsApp. And snapchat, now it might look like a neat idea, but imagine that couple of years back. There is always room for disruption. Few categories of products are almost like fashion. There is no additional value they are bringing to the table. And there is no logical reasoning or no proper prediction possible on what becomes the next big thing. Then there is this room for replicating similar succuccessful ideas in emerging markets. Hundreds of ideas waiting to be explored in hundreds of markets. Then the unexplored beast of enterprise software. Not the makrt of consumer products rebranded as 'for' enterprise but actual tools or services that improves existing ones, many of which are decades old. But you need to be deep inside the domain to disrupt here. And of course finally the innovative ones. Which are the hardest but perhaps the most publicised making an impression that startups are all about innovative ideas.