Conscious Choice cover

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.


“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of founder of the Mars Society.


Available everywhere for $3.99 (before discount) at Amazon, Barnes & Noble, and all ebook vendors, or direct from the ebook publisher, ebookit. And if you buy it from ebookit you don't support the big tech companies and I get a bigger cut much sooner.

SpaceX now one of the world’s most valuable companies

Data from a new round of investment capital fundraising says that SpaceX is now valued at $21 billion, placing it among the only six venture-backed companies worth more than $20 billion.

The article also notes that this new valuation is up from the $12 billion listed only two years ago.

Update: As noted by my readers, I have revised the post to note that this story refers not to all companies but to those that obtained their financing privately.


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  • wodun

    A launch rate rivaling the rest of the world will do that.

  • ted

    The article states ” just six other venture-backed companies are valued at $20 billion or more around the world.” That’s a long way from “SpaceX now one of the world’s most valuable companies” or ” SpaceX is now valued at $21 billion, placing it among the only six companies worth more than $20 billion.”

  • Matt in AZ

    The article says SpaceX’s value places it among the six other venture-backed companies worth so much. There are many companies (of other types) throughout the world that are worth far more than $20billion.

  • Matt in AZ

    Oops, looks like Ted beat me to it!

  • Thank you Ted and Matt. I have revised the post.

  • ken anthony

    Absolutely amazing considering they are in the development part of the growth curve rather than the revenue part with much greater cost efficiency to come.

    I’m miffed that I can’t buy stock even though Elon has plainly stated that profit is not his primary motivation.

  • Diane Wilson

    I can certainly understand why Musk wants to keep SpaceX private, since he’s pouring all the profits back into development. Stockholders, most of whom are pension funds and mutual funds, tend to want a share of those profits. They also tend to want a say in business plans, to ensure that they get those profits. I’ve worked in both privately held and publicly held companies; the difference is very real.

  • LocalFluff

    Oh, it’s easily worth it!
    As with media or weapons, your product has more benefits than the cash flow from customers. SpaceX will dominate all space flight and it will be very hard for anyone to catch up. And you all know what is in space, right? Everything!

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