That's much like promising you a salary of 200k ... in some undisclosed unit of currency. The rational valuation of it is roughly nil, even if they succeed. So

That's much like promising you a salary of 200k ... in some undisclosed unit of currency. The rational valuation of it is roughly nil, even if they succeed. So you have to decide if you'd still take the position if that part of the compensation weren't offered at all.