Hello, Universe.

So she made a graph out of Legos. LEGOS!!

When Grace is still incredibly amnesiac and manages to remember what his apartment looks like, he remarks the lack of feminine touches in the decoration and casually wonders if this means he is single or maybe gay.

Upon learning of the astrophage problem, all the nations of the world get their shit together in record time and give Stratt basically unlimited power, authority and resources to do whatever is necessary to save Earth. This itself is a political choice. Pair it with the vastly different real world response world leaders have to climate change and it becomes a social commentary, sorry Andy but it really does.

The reason Grace decides to join the Hail Mary project is because of his students. He's in the middle of a class when he realizes the incredibly hard and bleak future that awaits his students due to the cooling Sun, and tells Stratt he wants to keep helping.

Shortly after figuring out how astrophage reproduce on his own, Grace is taken to the aircraft carrier, where he meets for the first time the other scientists involved in the project. After explaining his findings, a Chinese scientist announces their team has been able to reproduce Grace's findings, the implied reason being they had somehow spied on them.

During one of his first conversations with Rocky, Grace remarks on an unexpected hurdle of meeting aliens: pronouns. His conclusion is to just shrug and slap he/him pronouns on Rocky. There are no further conversations about this topic, not even when both of them are able to communicate fluently. Grace doesn't re-examinate his pronoun choice any further, nor, despite having a PhD in molecular biology and being curious about things like how Eridians eat, ask about Eridians' concepts of sex and gender.

Following that previous point, when Rocky mentions having a mate back home, Grace chooses for said mate the name Adrian. This is yet another reference to the Rocky movies, albeit a more obscure one, and a lot of the people that didn't realize this simply read both Rocky and Adrian as male and therefore gay.

One last bit re gender and sexuality is the fact that at no point during the book does Ryland Grace, a single man of unspecified sexuality, lament being single or express any sexual desires, which is why many people read him as being on the asexual spectrum.

The movie had to gloss over many things and completely skip over others, some of these later things were the incredible sacrifices and hardships Earth had to go through to survive until hopefully Project Hail Mary managed to find a solution to the astrophage problem. First off, in order to produce the astrophage fuel for the ship they paved a huge chunk of the Sahara desert, which had devastating ecological and climate consequences, altered or destroyed the homes and livelihoods of millions of people and created tons of refugees. Also, in order to win time and counter the effects of the cooling Sun, they start to nuke chunks of fucking Antarctica, because making climate change worse will make Earth hotter and therefore buy them time. The first time the scientist (a self-declared hippie ecologist) in charge of this orders the release of the bombs, he understandably breaks down and starts to cry. Needless to say, nuking the fucking Antarctica raises sea levels and also has horrendous ecological and climatic consequences and once again would in fact create millions of refugees. The fact that the book doesn't dwell on the consequences of any of these two actions doesn't change the fact that we as readers are supposed to extrapolate and put two plus two together whether Andy intended to or not. Expecting otherwise is frankly insulting.

At one point Stratt tells Grace what will happen to Earth while they await for the solution to the astrophage problem. She talks about the famines and how many people will die, but that's just the people that will starve to death. Millions more will die in the wars that will break out all over the planet because there is no way the richer and more powerful nations will be willing to share resources equally with the rest.

Grace gifts Rocky, a member of an alien species, a laptop that contains the sum of all human knowledge, history and media. He knows Rocky, but has never met other Eridians, and despite this he chooses to give it to them.

The fucking foundational plot of the book is interspecies collaboration, trust, and friendship. Choosing to meet and befriend an alien despite all the possible risks and dangers is just as political of a choice as choosing to kill an alien would be.

their (live!) young gestate for. wait for it. eight to eighteen (??) YEARS. can have up to 10 at a time. good grief.

longest lifespan of any vertebrate, up to five hundred years

toxic flesh

has giant eyes but is usually blind because of a weird little crustacean that's evolved to live on and eat their eyes. this doesn't seem to bother them much.

lives in deep cold water and has the lowest swim speed and tail-beat frequency for its size across all fish species. just generally lives life in extreme slow motion

largest genome of any shark

eats everything including moose and polar bears

link to the podcast, this section below is from timestamp 24.35

“andy weir provided a packet to the creature shop that was like a packet of eridian biology and stuff but there wasn’t much about eridian culture or eridian sociology and i made a bunch of choices going in because i just needed to have like a ‘who am i?’ right? 

[…] and i made a decision that rocky’s species, that eridians are really social animals that in fact are like a beehive or a pod of dolphins - it’s a unique and really integrated ecosystem of everybody doing their [specific] part. and the fact that rocky had to fly that ship for about 45 years - longer than grace has been alive, i wanna point that out - he’s been alone on that ship, having to run that by himself and- ryan and i would talk about that, one day we sat down and he was like “so what’s the movie from rocky’s perspective?” and i was like “oh it’s like ‘alien’, […] like he’s in a ‘contagion’ movie by himself and he has no idea what’s going on.”

he’s basically in castaway by himself which of course ryan is too but like, one reason why we never cut to the past of rocky is like, i think it was really horrifying! i don’t think rocky has slept in however many years and so a thing i was really struggling with is this idea of like “rocky must watch sleep” because how do you make that a need as opposed to like, a cute idea? and i just had to make the decision that […] he has a lot of unprocessed trauma around the things that he doesn’t understand and how much he is blaming himself because he’s the guy who fixes, he’s the guy who fixes and there was something really freeing about deciding that rocky was a deeply emotional, deeply anxious, deeply horrified person - being - that is trying to move through that in some way and how that affects the early scenes with him until there’s a point in the story where you can see we’ve physically softened rocky’s behaviour, because he’s finally feeling more safe and ok but all of that lore, all of that information [was essential].

But also it's about breaking and entering into sea world and making a janitor think you killed your best friend so you can escape, it's about gaslighting your coworkers into thinking you are the dumbest man alive, it's about only closing a mystery when it's as funnt as possible and making sure everyone else around you is as baffled as possible. It's about childhood and nostalgia and growing up in the most chaotic way you can. It's about people being killed with a t-rex skull, it's about slapstick and committing to the bit and being the silliest messiest bisexual on tv in 2006-2014.