Modern sewer systems are safe
They produce biosolids which are probably very contaminated and are presently jammed into landfills if they are not (from my understanding) unsafely repurposed. I'd like to see people openly entertain the various uses we could have for our waste. Our systems aren't good enough quite yet to close the book on.
connect with high speed rail isn’t feasible
From my perspective, high speed rail is very feasible for freight and transportation. Does it make sense to connect to every remote and mostly uninhabited region? Probably not.
We need to work on our communities
Hard yes. I just feel that it's very difficult to connect when you are so vastly disconnected in current cities.
and make cities safe for people to live in
We'll have to get very serious to tackle our pollution and polluting practices to do so. I think a large number of cities will have to naturally relocate/rebuild as the situation shifts in the coming decades and that is what I was attempting to touch on.
get rid of cars etc. spreading out isn’t the answer
I'm not explicitly arguing against centralization or arguing for dispersion into rural areas, and I do agree with you largely. I think accessible high speed rail is one way that we can get rid of cars and other vehicles.
We need to redefine society if we want to truly unify, and it starts with an universal human bill of rights. Ensuring individual and community-based sovereignty with guiding concepts like direct democracy are important first steps. Dependence on externalities and reliance on impersonal entities like corporations (which largely capture governance, science, and everything else they can) needs to stop if we want to realize a world that is worth living in for ourselves and future generations.
Society is our doom if we continue to allow pollution, waste, and destruction of our environments on levels we have never seen before, while experts and other people in the know stand silently and cover the situation up, or are largely ignored if they are actually crying out. Environmentally-caused disease and chronic illness are rising to levels that we can no longer ignore or cover up.