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The NASA budget is $25B. It'd cost a lot more than $25B to put in proper bike infrastructure in every city.

That's why there are multiple levels of government with their own funding sources

And the interstate highway system cost $550B (in todays dollars) to construct. Useful things are often expensive…

I don’t follow. A space program isn’t really relevant to transportation…

And developing self driving cars aren't that relevant to bike lanes.

I was responding to the original comment.

But they’re both forms of urban transportation that share the same infrastructure.

unless if a space program came out of city budgets I am unsure why this is relevant

Developing self driving cars don't come of city budgets