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Cake day: October 19th, 2024

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  • In 2003 Liftport forecast they would build the first space elevator by 2018. Since then, nobody has been able to solve the problem of catalysts gradually degrading, and other issues that limit the length of carbon nanotubes to about half a meter. So research has mostly given up on trying to make really long nanotubes tubes and is focused on weaving shorter ones together into a “yarn”. But the yarn has only 1 or 2% of the tensile strength of individual nanotubes - too weak to be a tether material.

    So it’s not like there’s a steady stream of progress. The field seems to be waiting for a new revolutionary nanotube making process that avoids the original problems. Recent forecasts I’ve seen don’t expect the tech to get here until near the end of this century. With climate change becoming a more pressing issue (finally) my bet is more like well into the next century. That’s what makes me think better, cheaper rocket propulsion will come along sooner.











  • When I can’t find something in the house after searching for a few minutes, I make a conscious decision to give up and take another approach - go buy the missing tool again, use a different material, whatever. The point is to decide it doesn’t matter where the thing is. Most of the time I immediately look right at whatever I was looking for - as in within a few seconds. Family members are used to hearing me say out loud, “I’m just gonna go to Tru-Value and get another - Oh, here it is!” It works that fast and is very reliable.

    My theory about this is that part of my brain knows where the item is all along, but enjoys the treasure hunt and won’t let the information come to the conscious level. But once I sincerely decide to give up the search - it has to be a genuine decision, there’s no faking it - that part of my brain knows the game is over and reveals where the thing is. But who knows, I’m no psychologist.