Does he literally phrase it as 20/50/80 years at 20/50/80%?

Opalyn will make as if to hug him, and if he doesn't flinch, she'll go through with it.

Maybe not exactly but close enough, phrasing-wise.

If she makes as if to hug him, he'll take a quick step back and raise his eyebrows questioningly but not un-friend-i-ly, as if to say, 'I'm not afraid of you per se but lack context on what strange interdimensional activities you might be about to perform such as might unknown-to-me result in our being suddenly married from your own standpoint, as has happened to many protagonists in famous stories around these parts.'

Then Opalyn will not hug him! She's still happy about him though. She'll buy him breakfast, as soon as she has any money.

The Captain doesn't seem surprised at all to see Opalyn again so soon!  Sure, he'll loan her some spending money if she's willing to sign a receipt for it.

Of course!

What does the money look like?

Pretty! Breakfast, then?

He can begin escorting her toward the nearest cafe that's open at this hour and actually good, sure.

There'll be more people in the streets, now, with the sky having already lightened, and some will give Opalyn curious looks; though the apparently friendly presence of Sergeant Twoodle will be seemingly sufficient for them to react with no visible alarm to this foreign?? dignitary being escorted about.

He'll try to answer some of her other questions along the way.

From the perspective of a jumped-up peasant kid like himself, there aren't really such things as laws of physics, just, stuff that Sparks are or aren't powerful enough to do.  Doctor Disaster can pull secretaries across dimensions.  Other Sparks can, like... build time machines.  Or build machines that think.  Or create new, self-reproducing races of monsters.  Or blow up entire cities with a hand grenade.  It depends on their specialty.

Powerful Sparks can do all of that.  Queen Albia can do all of that.  One Heterodyne every couple of generations can do all of that.

Say more about machines that think?

Like... the Castle Heterodyne talks to people?  And plots their death if it doesn't like them?  Sometimes there's a bit of an accident and Mechanicsburg runs itself for a generation or two until some lost Heterodyne heir shows up to take over the place again, and when they do, it's the Castle Heterodyne that recognizes them.

Van Rijn, the self-proclaimed "greatest Spark of all time", gave the Eight Muses as a gift to Andronicus Valois the Storm King, the self-proclaimed "greatest king of all time", and since then those sentient clanks have been advisors and historians to the Valois dynasties for centuries.

...or on a much smaller scale of Sparkdom, there's, like, building a big battle-clank and making it smart enough to keep fighting if the pilot gets killed, though not so smart that it runs away.

Is there any such thing as a thinking machine that is a Spark?

...eehhhhhh you probably want to ask that one of somebody smarter.  There's thinking machines that are excellent engineer-minions to great Sparks.  There's artificial races that have given birth to Sparks.  He can't recall off the top of his head a thinking clank that was a significant-enough Spark to have gone down in history.

All right, she'll flag it for further investigation later, then, but so far this world still gives every indication of humans being the predominant race, and it doesn't seem that they are on the brink of a very fast slide into irrelevance as thinking machines improve themselves and crank out copies of themselves and take over everything. She'd like to better understand what maintains that equilibrium, but it does look from the evidence she has so far like it is an equilbrium that has persisted for hundreds of years.

Phew.

Jumping back up...

"no such thing as the laws of physics" seems unlikely to be the right framing but she won't get better from Twoodle, so she'll just let that go for now, too. She's learned a bunch more about Sparks but only by example, she still doesn't have a clean understanding of what Sparkdom even is or how it functions, but she's getting the hang of what looks Sparky. She'll table that too.

Probably go back to the big original list of questions, then?

Maybe talk more about how people on this world are organized politically? Like, are there nations? It sounds like no...

There's Sparks with large territories, and dynasties that have ruled for more than just a handful of decades.  What is a "nation" if not that?

Opalyn has at this point decided that Twoodle is a pretty stand-up guy, but not cut out to be her peer, probably, so she is not going to get into an in-depth explanation of the difference between a feudal fief and a nation, particularly because he's probably never seen an example of what Opalyn is thinking of. She'd explain it if he seemed truly curious, given that he's being such a good sport about her questions. Does he seem curious?

He seems like a guy with a lot on his plate, especially with Doctor Disaster having been kidnapped.  He seems focused.  He seems alert to possible monsters in the shadows.  He doesn't give the impression of being actively uncurious, more like, he's monitoring events besides the kidnapped Doctor's interdimensional secretary's questions.

Cafe BTW.

Opalyn wants something like an oversized muffin with fruit in it and a chai latte. If accomplishing this task at a Starbucks usually costs her 10 Interacting With Strangers points, how many points does it cost her here?

Prooobably more than 10 such points; she is going to need to explain how to make a 'chai latte' to somebody who absolutely WILL and will be INTENSELY FOCUSED about GETTING THAT DONE, like a tiny little Spark of Beverages.

Oversized muffin with fruit in it can be ready in 5 minutes, they have a horrendous offense against the laws of Nature and Nature's God for baking muffins quickly.

Do the words for cinnamon and cardamom and cloves and ginger seem to translate? Can they make her a drink that tastes like those things and is a little sweet and a little spicy and has a lot of milk in it?

He will absolutely get that done even if it requires breaking the laws of physics.

She loves it. She'd put on ninja clothes to steal that drink, if she had to.

Opalyn kind of loves Europa's earnestness.

At a table with their food.

So. Where were they?

Oh yeah! Opalyn would like the rundown on the economy. How much money do regular people have? Or, not money so much as wealth. Like, what kind of housing do they live in, do they always have enough to eat, do they have any leisure time, what do they do with it, and so on.