I've been listening to both Jimmy Wanjigi and David Ndii.
Ndii seems to have become very quiet lately on twitter. The bravado is gone, but to summarize both their views here:
Wanjigi is saying there is no way out but default.
Ndii is saying that difficult choices will to be made, but hasn't mentioned default. I find Ndii difficult to understand because he sounds like an economics professor that can't break down economic concepts in a way that a layman would understand.
Wanjigi is much better at breaking down his arguments and he keeps things simple and precise. He breaks his arguments down using publicly available numbers he gets from the treasury and he keeps saying it's simple mathematics and that math isn't adding up.
I'm still trying to figure out what Ndii is saying.