It is feasible, you can do, you can earn Bitcoin without fiat investment but it will be a bit difficult and you have to put more effort. Participating in signature campaigns, social media campaign is one of the best ways to earn Bitcoin, you need to improve the quality of your article to participate. Besides, if you have some skills like graphic design, logo, web development, you can open a service to earn Bitcoin. Whether you invest or not, you also need to work hard to earn