So either Facebook/google etc. were never start-up or they are making imaginary money(in billions, I must say) from imaginary customers.
But Facebook does impact the rest of society. Families are sharing photos with loved ones, important news with those far away, etc.
Facebook's situation doesn't change my opinion though. It's an exception, not the rule.
So either Facebook/google etc. were never start-up or they are making imaginary money(in billions, I must say) from imaginary customers.