Obama is projecting gigantic deficits as far as the eye can see. Giving up on space now is like a kid taking some time off from college. They rarely end up ever going back.
I see nothing preventing us from going back to manned missions, once we have the revenues to pay for them. It seems silly to me to keep doing something out of fear that if we stop we may never return to it. If it's not worth returning to, then it was probably not worth the effort in the first place.
The kid going to college analogy is off. The reason people (individuals) do not return to college after savings permit it is a combination of time constraints and opportunity costs. In the grand schedme of things, if you look at many people who would like to go back to college, some do and others don't. In a nation of billions with more being born every day, there will always be some capacity for people to return to this endeavor and so some will (unless political leader refuse to alow it, which seems unlikely).
Yes, but basic science is not as "sexy" and doesn't inspire the public the way manned space missions do.
Again, I would say that pursuing anything as a national policy because it is "sexy" rather than out of a desire to obtain the benefits it yields is going to lead to needless waste. The great tragedy of American science is that we based our commitment to it around defeating communism, and now that communism is no issue, we struggle with reasons to pursue it.
Science rocks so hard, I guess, that a rank "appeal to emotion" is the logical fallacy of choice to trick people into it.
I'd agree. But your analogy is off. I'd compare fully funding NASA to the family eating out at McDonalds once in a while as a treat, or maybe catching a movie. Normal ways of blowing off steam that no one would criticize even a poor family for indulging in on occasion.
That is billions of dollars worth of McDonalds though. Less flippantly, the federal budget in 2008 was about $2.9 trillion (which was before the stimulus, but after the wasteful wars...still let's take that as a rough measure of a "baseline", non-stimulus affected, federal budget for the sake of the argument), NASA's budget for the same year was $17.318 billion. That is 0.597% of the federal budget. That means, under those pre-crisis baselines, you could only afford 167.5 of those Happy Meals, before you'd be broke. If you ate every meal at this hypothetical McDonalds, you could afford to eat only every other day, and that assumes you pay no rent, utilities or anything else that year. (Obviously, if you think the real "ideal" federal budget is less than $2.9 trillion, then the relative proportion of NASA's share, if the dollar amount were cut, would get larger.)
So I think the truth is between our two analogies. It's not quite an extravagant vacation, but it's not McD's either. It is, however, a non-trivial commitment of resources.