Biosphere failure forensic report by agent 359348349 in outer galactic sector 17:
"The third planet began its ascent to technological singularity but became terminally fixated upon the repeated calculation of an obscure cryptographic mathematical function. Nearly all geologically sequestered carbon was rapidly oxidized to provide energy for the computation of this function, triggering a runaway greenhouse effect and transforming the planet's climate to one resembling that of the second planet in this solar system."
"And as was the case with the second planet in the solar system, before its runaway greenhouse gas death, we expect to see the process repeat itself on the 4th as probes sent from the 3rd again contained micro-organisms which have managed to adapt to climate there and have begun replicating. This time the period should be considerably shorter then the previous 2 billion years as cells with a nucleus have successfully adapted to the 4th, whereas from the 2nd's probes to the 3rd only non-nucleus possessing cells managed to initiate a replication cascade until this terminating event."
"The third planet began its ascent to technological singularity but became terminally fixated upon the repeated calculation of an obscure cryptographic mathematical function. Nearly all geologically sequestered carbon was rapidly oxidized to provide energy for the computation of this function, triggering a runaway greenhouse effect and transforming the planet's climate to one resembling that of the second planet in this solar system."