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"I don't have an e-mail address. As much as I admire the Internet I suffer literally agoraphobia, which in it's original sense means a fear of the marketplace. I do not want to receive three hundred e-mail messages per week from strangers…"
- William Gibson

Yeast Steak  
  Growing custom strains of yeast as food.  

...These strains of yeast have each their peculiar properties. The beef steak you thought you ate today was yeast. The frozen fruit confection you had for dessert was iced yeast. We have filtered yeast juice with the taste, appearance, and all the food value of milk.

It is flavor, more than anything else, you see, that makes yeast feeding popular and for the sake of flavor we have developed artificial, domesticated strains that can no longer support themselves on a diet of salts and sugar. One needs biotin; another needs pteroylglutamic acid; still others need seventeen different amino acids...

Technovelgy from The Evitable Conflict, by Isaac Asimov.
Published by Astounding Science Fiction in 1950
Additional resources -

Compare to scop from Bruce Sterling's 1988 novel Islands in the Net and the yeast-beast machine from David Brin's 1994 novel Natulife and crop algae from James Blish's 1957 novel Cities in Flight. And don't forget protine from Philip K. Dick's 1955 novel Solar Lottery.

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Additional resources:
  More Ideas and Technology from The Evitable Conflict
  More Ideas and Technology by Isaac Asimov
  Tech news articles related to The Evitable Conflict
  Tech news articles related to works by Isaac Asimov

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Microbial Protein Production More Efficient Than Crops
NASA's Deep Space Food Challenge!

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