Thanks for your insight. What do you think is the secret sauce for the success of these companies? Is it marketing and grabbing mindshare? I hear a lot these d

Thanks for your insight. What do you think is the secret sauce for the success of these companies? Is it marketing and grabbing mindshare? I hear a lot these days that people discount programming aspects or ideas for a product - they say rather it’s the ecosystem to take an idea and push it to the masses. Is there a common trend in these examples or do they all have their unique particulars (eg Facebook being borne out of Harvard social network)?