"Xenos could be here" he thought, "I've never been in this solar system before. There could be Xenos anywhere." The hot plasma wind felt good against his dispersion field. "I HATE XENOS" he thought. Sweet Dreams are Made of These reverberated his entire ship, making it pulsate even as the $9000 wine circulated through his powerful thick veins and washed away his (merited) fear of alien species after perihelion. "With an FTL drive, you can go anywhere you want" he said to himself, out loud.
I'm sorry for poking fun at it, but this sort of argument is hard to take seriously and always has been. 'If we discover an alien civilization, maybe we should pre-emptively wipe it out. I mean, suppose they did something crazy, like wipe out our entire civilization???!'
As well as being paranoid, this is line of reasoning is stupid. Imagine we discover this alien species and they seem far in advance of our (near future) technology, making them horribly scary. We decide to pre-emptively wipe them out by firing a relativistic mass into their star, as he describes reading about in his new favorite sci-fi book. All good, right? But what if the aliens have already spread out from their solar system, take note of the destruction of their homeworld, and do the same thing to us? We all die anyway, and the rest of the sentient universe thinks it's justified because we launched an unprovoked effort to destroy another civilization.
If we're going to compare our interstellar FTL future with the fate of indigenous people in the Americas during the age of exploration, this is like saying 'if the Aztecs had been smarter, they would have not only killed the conquistadors, but launched a preemptive expedition against the kingdom of Spain, wiping out the Spaniards and securing their own posterity!'
Now perhaps I'm being uncharitable here and the author means we should be more like the Sentinelese, the (mostly) uncontacted tribe in the Indian Ocean that lives in blissful ignorance of the modern (world (except for aeroplanes) and reliably kills and religious or sensational entrepreneurs who attempt to land on their island. But that's much more like the scenario in the movie Predator, which the author dismisses as silly compared his preferred eschatological scenarios.
What really bothers me here is the fundamental premise that advanced civilizations will inevitably wipe out others that they come in contact with, which seems to me like an extreme case of path dependency based on a shallow reading of colonial history. Most westerners are unaware that during the 15th century China was also having n age of exploration, with admiral Zhang He sailing as far west as the east coast of Africa, making contact with what is now Somalia. Why didn't these explorers go on a rampage, wiping out everything in their path in line with the author's understanding of game theory? It's not because they were just a tiny expeditionary force that got blown off course. Zhang He led a huge fleet with hundreds of ships, a total crew of about 25000 men, and his ships were large enough that he brought exotic animals like giraffes back to China. Nor were they short of military technology; the Chinese had invented and largely perfected the crossbow 1000 years before Europeans did, and were likewise in possession of advanced tactical and strategic military doctrine.
The Chinese didn't halt their era of exploration by wiping out everyone they encountered or because they anticipated being wiped out, but for domestic political considerations; the cost/benefit analysis didn't make sense to them and they wanted to visert resources to defending against one of the periodic invasions from Mongolia.
I read this essay as an example of the Hofstader's paranoid style*, which is rooted in a combination of geography, technological asymmetry, hubris, and eschatology - a style that is going through one of its periodic resurges due to American anxieties about global rivalries, the end of US technological dominance, and fears of imperial decline. It's the same mindset that has some pundits claiming opposition to data centers is organized by communist infiltrators (rather than arising from objections to pollutiona nd infrastructural overhead), or that it's so important for the US to retain its lead in AI that we should consider pre-emptive kinetic strikes on Chinese data centers.
To be blunt, I do not think that crafting game-theoretic rationalizations for pre-emptively destroying competing civilizations is logical or sensible. It demonstrates a half-assed understanding of game theory, assuming a lot of conclusions as starting premises and neglecting to consider the possibilities of iterative rounds, multilateral actors etc. Rather than engaging with the challenges (and opportunities) of complex systems, it reders all decision-making down to an atavistic adversarialism. Approaching all risk and uncertainty as an existential issue isn't healthy.
https://harpers.org/archive/1964/11/the-paranoid-style-in-am...
https://www.heritage.org/technology/commentary/china-working...
https://www.cnas.org/publications/reports/superpowers-and-ag...