for someone who worked in this area, you have an unbelievably short term view.

humanity either has fusion reactors or it doesn't. imagine what we can do with them, the spacecraft we can build, submarine cities, one in every home. Mars, Europa. It's not where we'll be 10 years after we do it, but 100 years, 500 years. To get there, we've got to step forward now.

DT fusion reactors are useless for spacecraft. They don't do anything that fission reactors couldn't do better, more cheaply, and much more compactly.

Open Brayton cycle fission reactors would be outstanding on Titan, with all that cold gas to compress and reexpand after warming to quite moderate temperature.

Well said and thank you (speaking as one who also has worked in this area).

haha. someone introduce Agile to North Korea. They're not going anywhere now.

"What were they used for?" is asked like there's only one answer.

- the author literally goes to lengths to explain that they believe they had multiple purposes at different places/times. It's like you didn't actually read the article...

Understanding why you're doing something at the strategic level, helps you make decisions at the tactical level without having to go back up the chain every time. Without this knowledge, someone else has to make decisions that you are best placed to make.

"is the total amount of oxygen that your muscles can extract from your blood per minute"

genuine question, but wouldn't this also correlate with muscle mass? you can put on a LOT of muscle, so doesn't more muscle mean more oxygen being extracted from your blood?

Yes. But the unit is ml/kg/min, so increasing your mass with muscles increases the ml extracted, but also the division by kg.

Been there done that. Saying that so you know I'm not full of it.

1. You have to make exercise part of who you are now. You're a runner. Runners run.

2. Think long game. It's going to take a couple years.

3. Start small, and just keep beating your previous.

4. Diet, sleep, exercise in that order.

Is there even an elephant in the room? Most of these other countries have effectively free access to health care, whilst millions of sick American's avoid seeking care because of the crippling debt that comes with it.

Also, I know how unpopular this opinion is, but as someone who's lived in America, several European countries, and Australia... the average American has a lower standard of living than the average European, and the bottom of society in America tends to fall much lower than the bottom in a European city.

Life is more civilized in France, Italy, Spain than in the US. Sorry :D

I agree. Having lived, worked, and paid taxes in Denmark, England, Scotland, the US, and Australia. Most Americans have no clue and keep blindly thinking that the US is “better” than all other countries in every possible way. Completely ignoring all the statistics and real data showing that it simply isn’t true. The willingness to ignore reality is jaw dropping.

> Also, I know how unpopular this opinion is

I don't think this is unpopular at all, at least here. I've even avoided some nonessential medical care in the European country I live in due to the costs, and those prices would still be lower for nearly anything (with some exceptions) compared to in the US. I think this point is just not brought up here because it's well-enough understood in this audience that it's more useful to discuss other factors that might be more neglected, such as lifestyle, etc.

The elephant in the room is Obesity.

because light doesn't experience time, and the closer you get to the speed of light, the less time you experience. So what OP didn't say was that, while YOU can travel many lightyears in your lifetime, everyone you know will long be dead.

Management and leadership are not the same thing. One person can lead millions of people through clear and emotional articulation of their vision.