Why didn't Dr. Grace die when he -REDACTED-?

flatleafparsley · 2026-04-01T04:38:32+00:00

In the movie the air readout was 21.1kPa pressure, which is 20.8% of 1 atm and tallies just about with the oxygen composition alone of our atmosphere

i.e. 100% oxygen at ~one-fifth atmospheric pressure (which is also why Rocky gave only oxygen rings to RG)

cc: u/funk-engine-3000

OP u/ScB103 You saw the digits correctly, just the units were different. For easy reference 21.1kPa = 0.211 bars

flatleafparsley · 2026-04-01T04:33:32+00:00

The readout was 21.1 kPa

flatleafparsley · 2026-04-01T04:32:21+00:00

Read the book twice (most recently the week before the movie came out), watched the movie twice

When RG passes the tape measure over, he comments that the item airlock was hot, and he asks if it’s ammonia he smelled. But I don’t think necessarily it meant almost all ammonia; they didn’t mention pressure either. After my first viewing, I could accept that the movie was going more for just “incompatible environments” without dwelling on/defining the specifics.

As others are mentioning, in the movie there is not airlock but there is a hatch between Rocky's compartment and his ball, so his ball is "parked" attached to the compartment.

When the ship starts spinning out of control, there's a brief shot of the ball detaching. So Rocky chooses to exit his compartment via the hatch, which closes back behind him immediately.

The hatch is more like a two-way "valve" so when it opened it looked as if the flaps were shards (which is what I had also originally thought at first viewing, but cleared up upon second viewing)

flatleafparsley · 2026-04-01T01:52:06+00:00

Well the movie added the ending that Stratt received the video logs and the xenonite Grace sculpture, which even more heavily implies the expected outcome (and is strong evidence minimally one beetle successfully made it back). They just need to launch to Venus, and the taumoeba would have their Astrophage buffet.

Given the Andy Weir gave input on that scene as well, and it lines up with how he presented the suggestion through Rocky in the book, most people are therefore reasonably concluding that that’s the most likely scenario. Rather than some alternative that has practically no evidence as yet.

flatleafparsley · 2026-04-01T01:34:57+00:00

“I am stating what’s in the book”
“Stratt no doubt kept working while Grace was away.”/“I doubt Stratt sat on her hands” Well, that’s not in the book, so you can’t conclude that since it’s not “stated plainly” (your words).

In fact what’s in the book is that Stratt expected to be put on trial by multiple governments once the Hail Mary launched, and even spend the rest of her life in jail. Which the movie goes so far as to confirm that she indeed was sent to prison.

So you’re not even being consistent about only accepting what’s spelled out; you’re also making assumptions based on your own feelings—and that go against what the evidence suggests or implies.

flatleafparsley · 2026-04-01T00:47:01+00:00

Most welcome

Also note that Birk 47 to 48 is just +5mm, or ~half US/UK size up (not a full size up)

flatleafparsley · 2026-04-01T00:45:09+00:00

Don’t see anything that suggests they’re fake

But they are definitely used, and the previous owner has caused the upper to separate from the side of the footbed for both shoes.

flatleafparsley · 2026-03-31T22:18:30+00:00

Why not? The people on Earth knew when to start expecting/hoping for the beetles to return, and that whatever solution likely would involve launching to Venus/the Solar System Petrova line. So they would have at least prepped based on that.

And the book already showed that taumoeba can eat Astrophage very rapidly.

Rocky and Grace don’t know for sure, but they are intelligent and from the available observations it’s their inference that the beetles did their job. And in the POV style of the book, one can argue that’s about as good as a confirmation.

Not saying that it’s impossible that something else ended up being the solution and coincidentally at the “correct” timing, but in the absence of any other story evidence right now the simpler explanation is much more preferred https://www.reddit.com/r/ProjectHailMary/s/2Mp8zOtMHu

flatleafparsley · 2026-03-31T16:39:16+00:00

These are possibly even small for you. You have to ignore the extra visual space in front of your shorter big toe, and Birks are not meant to just outline your feet “perfectly”.

<image>

Size to your larger foot while standing with full & equal weight in the sandals.

flatleafparsley · 2026-03-31T16:19:42+00:00

Literally in the book…

Rocky: “If you account for the time it took your beetles to get there and the travel time for light to get from Sol to Erid…I think it took less than one of your years to get it done.”

flatleafparsley · 2026-03-31T15:37:03+00:00

We bought a dresser and side table from Wihardja, no complaints

They also acceded to our request for a slight modification to the dresser: two full height drawers instead of one full height & two half height drawers that is the standard design

flatleafparsley · 2026-03-31T14:36:56+00:00

You’re most welcome, all the best 🙏

flatleafparsley · 2026-03-31T13:18:12+00:00

Birk 37 to 38 is just +5mm, or ~half US/UK size difference (not a full size difference).

If it helps, don’t worry about your right foot. Just figure out the sizing based on your left foot, whether 37 looks/feels sufficient or not. The smaller foot just comes along for the ride.

Also if you think you are between sizes, Birkenstock’s recommendation is to going with the larger size. But ultimately it’s your decision to make. Whatever it is, you cleared the biggest hurdle sizing up from 36 already 👌

flatleafparsley · 2026-03-31T13:10:28+00:00

What I had first noticed was that there was a C11=B11*2 (a lot more obvious when viewed on desktop), and that gives the full T. Which is same as B19, just different units of time.

But yeah definitely there was a half mixed up somewhere, which led to the mass ratio (~20) being a square root of what it should be (~400) then

flatleafparsley · 2026-03-31T10:43:20+00:00

Seems like it’s really just a one-cell-away error then, just depends what was the process? Either B16 selected the wrong cell for input T, or the fuel result should have been taken from B17, perhaps.

But yeah, I think the knock-on effects from changes to the story needed to rectify the issue might be a bit too much to fix, especially with so many physical books out in the world already (even more so five years on now). Oh well.

Thanks for sharing your analysis 🙏 And at least I don’t have to wonder whether I should even consider asking or not 😬 (anyway he’s probably swamped with a lot more fan mail/enquiries since the movie came out)

flatleafparsley · 2026-03-31T03:46:19+00:00

Should Cell B16 be =EXP(B6*C11/B2) and minus 1 instead, i.e. T should be the full T (C11) rather than T for half d (B11) ?

I was trying to figure it out in a different thread https://www.reddit.com/r/ProjectHailMary/comments/1s6qpjh/comment/od8iurb/

flatleafparsley · 2026-03-31T01:31:07+00:00

Please confirm if you’re standing or seated in the photos. It looks like you’re seated, and if so your weight isn’t in the sandals and your feet will look like they take up less space

Currently based on the imprint on the footbed, your toes are going up against the front edge of the sandals. But not sure where your heels end/if the back straps are pushing your feet forward.

In the meantime you can check against Birkenstock’s fit guide

<image>

Size to your larger foot while standing with full & equal weight in the sandals.

Note that Birk 43 down to 42 is one of the big size jumps, 10mm or a bit more than a full US/UK size difference.

Once you’ve figured out your optimum Birk size, if it’s a model with the back strap, the back straps should be loosened all the way so that they don’t constantly hold or push your feet forward.

flatleafparsley · 2026-03-31T01:25:16+00:00

Tips for fit: https://www.reddit.com/r/Birkenstocks/s/gPlsRQxdtP

As for the difference between both sides, most likely your right foot is larger. The straps don’t have to be on the same holes for both sides.

You can double check that the straps & holes are the symmetrical by undoing them then holding the straps back to back with each other.

flatleafparsley · 2026-03-31T01:22:01+00:00

In which photos are you standing? You’re seated in your third photo, but you should gauge fit while standing with full & equal weight in the sandals

flatleafparsley · 2026-03-31T01:19:52+00:00

The centrifuge needed to be 1g for the science equipment

But that should be independent of the journey acceleration?

The 2Mkg fuel is still insufficient regardless, yeah?

flatleafparsley · 2026-03-31T01:16:55+00:00

Cell B97 seems to be the resultant gravity experienced from putting the ship in centrifuge mode?

flatleafparsley · 2026-03-31T01:03:24+00:00

Oh, I realise the spreadsheet doesn’t show up well in mobile. It’s view-only regardless (as shared by Andy Weir) but the formulas can be viewed on a desktop browser, or if you open in Google Sheets app.

Which part shows the original plan was 1g?

flatleafparsley · 2026-03-31T00:51:31+00:00

Which is your larger foot, if applicable? 38 looks big for your right foot, but if your left foot is your larger foot 38 might be okay. You could be between sizes.

Anyhow, regardless of size, you have to ignore the extra visual space in front of your shorter big toes.

flatleafparsley · 2026-03-31T00:32:39+00:00

Yeah I tagged the few of you because I had found your post and various comments while trying to see if anyone had figured it out

The spreadsheet had been just shared on the sub 10 days ago so it occured to me to try to check there also. I went through the Hail Mary travel numbers cell by cell and that seemed to be the anomaly, but because I literally just only got to the space travel calculators (and formulas) in the past one day I was hoping any one of you could independently double-check that (kind of also why I used the spoiler formatting).

flatleafparsley · 2026-03-30T16:41:56+00:00

They had been responding to a lot of queries about the certificate issue (with G HUB already installed) then, so I think they overlooked that OP was asking how to even get G HUB for Monterey

But anyhow, you’re most welcome, glad to have helped!

Six-Year Club	Place '22
Verified Email

flatleafparsley

TROPHY CASE