The way I see it, I can approach my life from two different directions: 

I can decide now what is and isn’t possible. Projecting my current abilities forward. With limited insight and ample preconditioned nurturing, I can decide what I am / am not capable of. 

And then spend the rest of my life finding evidence to prove myself right. 

Or I can accept that I don’t know what I'm capable of and may never know, but spend the rest of my life in the curious pursuit of finding out. 

I want to be curious.  But, it's not that easy. 

The arguments and evidence for a limited existence are justified, there’s plenty of valid, real life evidence to prove all of the ways I, we, all of us are inadequate and limited.