Rewiring Our Brains?

Is the Internet changing the way we think?

Over the past few years I’ve had an uncomfortable sense that someone, or something, has been tinkering with my brain, remapping the neural circuitry, reprogramming the memory. My mind isn’t going–so far as I can tell–but it’s changing. I’m not thinking the way I used to think. I can feel it most strongly when I’m reading. Immersing myself in a book or a lengthy article used to be easy. My mind would get caught up in the narrative or the turns of the argument, and I’d spend hours strolling through long stretches of prose. That’s rarely the case anymore. Now my concentration often starts to drift after two or three pages. I get fidgety, lose the thread, begin looking for something else to do. I feel as if I’m always dragging my wayward brain back to the text. The deep reading that used to come naturally has become a struggle.

It’s anecdotal, but I’ve noticed the same thing. I used to read many more books (and magazines, such as The Economist) than I do now. Almost all of my reading occurs on line, and I am much less able to focus than I used to be. But it’s not clear whether this is an effect of aging, or new habits. More the latter, I suspect.

“Not Silent”

As usual, Doug Cooke defends ESAS:

The “direct” variation fails to meet NASA’s needs on several grounds. It is vastly over-capacity and too costly to service the International Space Station, but worse, its lift capacity would not be enough for NASA to maintain a sustained presence on the moon.

Advocates for the “direct” variation are touting unrealistic development costs and schedules. A fundamental difference is that the Ares I and Orion probability of crew survival is at least two times better than all of the other concepts evaluated, including “direct”-like concepts.

Also as usual, he provides no evidence for his assertions. We are simply supposed to accept them because Doug Cooke says so. Have we ever seen the actual report that came out of the sixty-day study, with a description of methodology and assumptions? I haven’t.

I’m not necessarily a big fan of “Direct,” but his statement raises more issues than it answers. Why doesn’t the “lift capacity allow a sustained presence on the moon” in a way that ESAS does? Why should it be assumed that NASA’s new launch system will service space station? I thought that this was what COTS was for? What are the marginal costs of an additional Jupiter launch versus Ares 1?

Give us some numbers, and provide a basis for them, and we might take this seriously.

[Wednesday morning update]

More thoughts and comments at NASA Watch, and from Chair Force Engineer.

“Not Silent”

As usual, Doug Cooke defends ESAS:

The “direct” variation fails to meet NASA’s needs on several grounds. It is vastly over-capacity and too costly to service the International Space Station, but worse, its lift capacity would not be enough for NASA to maintain a sustained presence on the moon.

Advocates for the “direct” variation are touting unrealistic development costs and schedules. A fundamental difference is that the Ares I and Orion probability of crew survival is at least two times better than all of the other concepts evaluated, including “direct”-like concepts.

Also as usual, he provides no evidence for his assertions. We are simply supposed to accept them because Doug Cooke says so. Have we ever seen the actual report that came out of the sixty-day study, with a description of methodology and assumptions? I haven’t.

I’m not necessarily a big fan of “Direct,” but his statement raises more issues than it answers. Why doesn’t the “lift capacity allow a sustained presence on the moon” in a way that ESAS does? Why should it be assumed that NASA’s new launch system will service space station? I thought that this was what COTS was for? What are the marginal costs of an additional Jupiter launch versus Ares 1?

Give us some numbers, and provide a basis for them, and we might take this seriously.

[Wednesday morning update]

More thoughts and comments at NASA Watch, and from Chair Force Engineer.

Sympathy

Rich Lowry is feeling sorry for Senators Dodd and Conrad.

You know, people who don’t know what a kind-hearted and sensitive soul Rich is might think that he’s being sarcastic.

Seriously, if these were Republican Senators, you know that the media would be howling about it, with demands for hearings and Justice Department investigations. But they’re not.

Biting Commentary about Infinity…and Beyond!