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I want to know what good it is first

Of course you do! Who wouldn't.

So, in a nutshell, you track your activity that you would have done anyway (walking, riding, doing the house work), you write a post, 100 characters long and add a picture. For that you get upvotes and you receive some AFIT tokens which have value in steem too. Everyone's a winner.

5 minutes of your time everyday. You get fitter, more motivated, you earn more steem. And to top it off I will help you set it up and get it started!

What more could you ask for? 😉

I'm thinking