alt Hacker Newsno, i can advocate for having public rail without knowing how to lay track, how to fund it, or how to run the schedules. i can also advocate for photovoltaics and heat pumps getting funded, and i can advocate for health care reform without even knowing where that reform would go, just by knowing that the current state of the health care system is bad. there's no burden of proof when stating a preference.
If you are advocating for a position, with no idea of how to implement that position is implemented then you are just increasing the noise.
It is all fine and well to say "We should have public rail" but with out any idea of how it should be implemented and what it will take to get there, the idea falls flat on it's face. You have to be able to support it with funding increases and possibly eminent domain.
If you advocate for healthcare reform, great! So do I! And since you have no preference about how and what shape the reforms should take, you agree with me that we should abolish all health insurance companies! That would definitely reform the system but you might not like the outcome.
A large number of our current issues come from law and policy that was passed to address issues of the day with no understanding of how or why things were happening. Let's not continue that trend.