In steemit social media platform everyone earns money without anyone have to loose money
how this stuff works where we have unlimited supply of money .
Lets first go to basics what is currency and who gives value to it
currency is a medium to exchange anything or get any service for the currency you have
lets not get deep its just a basic definition.
the main point to catch is what gives value to your currency.
value hold by any currency is recognised by the fact that how many people want or use that currency.
As in case of bitcoin as more and more people recognise and demand for it which led to increase it value as it has over limited supply.
Thats how steemit works as more and more people recognise and use steemit. it gives value to steemit currency. thus more people post share and get involve more the steem coin become stronger
This is just a basic overview plz add on to this by giving more details in comment