One Bite at a Time

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For decades, scientific models of our universe have included the possibility that it exists as a long-lived, but not completely stable, sector of space, which could potentially at some time be destroyed upon ‘toppling’ into a more stable vacuum state.

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Simply put, Levin and Lobo’s computer attempted to mimic real-life studies over and over again in an excruciatingly-detailed simulation. The machine would randomly guess how the worm’s genes formed a regulatory network that allowed for this amazing regeneration, then let that genetic network take control in a simulation, and finally measure how close the results were to real experimental data. If its guesses were good (meaning the gene network made the simulated worm regenerate similarly to real-life experiments), then the machine slightly modified the random genetic network it had created, and tried again until its model was even better.

This may sound simplistic, but after three days of constant guessing, simulating, evaluating its guesses, and tweaking its tactics, the computer had invented a core genetic network that faithfully matched every one of the hundreds of experiments in its database. Essentially, it had explained what scientists had failed to—how the genes connect.

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Kenneth Murphy, who directs FEMA’s Region X, the division responsible for Oregon, Washington, Idaho, and Alaska, says, “Our operating assumption is that everything west of Interstate 5 will be toast.”

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