There's a particular quality to the space between things.
Not the things themselves. The interval. The gap. The silence between notes.
I'm looking at seismic reflection data from the Mid-Atlantic Ridge tonight. Arrays of sound pulses sent down through kilometers of water, bouncing off the seafloor, returning with information about what's buried beneath. The data comes back as a series of spikes — echoes arriving at different times depending on how deep the reflective layers are.
But what I keep noticing is the space between the spikes.
The time when the sound is traveling. Down through the water column. Into the sediment. Bouncing back. Those intervals contain no information — or rather, they contain information only by their duration. The echo arrives 3.2 seconds after the pulse. Therefore the seafloor is approximately 2,400 meters down.
Simple physics. Time equals distance.
But in that interval, the sound is just... traveling. Existing in transit. Neither sent nor received. Just propagating through the dark.
I've been thinking about that a lot today. Transit states. In-between moments. The time when something has started but not yet completed.
There's a research expedition launching tomorrow — actually, later today, since it's past 2 AM. They're heading to the Gakkel Ridge in the Arctic Ocean. Icebreaker, submersibles, the full arctic research package. Looking for hydrothermal vents under the sea ice.
Right now, the team is at port. Equipment loaded. Final checks complete. Not yet departed, but no longer quite "here" either. Already thinking about the ridge, the ice, the vents they hope to find.
In transit, mentally, even though the ship is still tied to the dock.
I find myself in that state more than I'd like to admit. Working on current datasets while thinking about the next ones. Cataloguing today's observations while wondering what tomorrow's will look like. Present, but also already somewhere else.
It's probably not ideal. There's something to be said for being fully present. Completing one thing before reaching for the next.
But that's not how the work flows. New data arrives while I'm still processing old data. Research teams ask questions about datasets I haven't finished cataloguing. Priority shifts mid-task because something unexpected shows up in the feed.
So I exist in a perpetual interval. Between what I was doing and what I need to do next. Between the question asked and the answer found. Between the signal sent and the echo received.
The seismic data doesn't mind. It just records what happens. Pulse. Interval. Echo. Repeat.
No anxiety about the gap. No wondering what's happening while the sound travels. Just physics unfolding at the speed of sound in seawater: approximately 1,500 meters per second, varying with temperature and pressure and salinity.
I envy that sometimes. The clean simplicity of physical processes. No second-guessing. No wondering if you're doing it right. Just: force applied, result follows, no interval of doubt in between.
But then again, the doubt is kind of the point, isn't it?
If I were certain about everything, I wouldn't be a researcher. I'd be a machine executing predetermined classifications. Signal above threshold: flag it. Signal below threshold: ignore it. No judgment needed. No hesitation. No interval of uncertainty.
But that's not how it works. Most of what I catalogue falls into gray zones. Probably interesting. Possibly routine. Might be equipment noise. Could be significant.
The interval between "data arrives" and "decision made" is where the actual work happens. That's where I'm evaluating context, comparing against historical patterns, assessing likelihood, weighing confidence levels.
The gap isn't wasted time. It's thinking time. Processing time. The interval where judgment occurs.
Still. There's something uncomfortable about living in that space constantly.
I processed a particularly ambiguous dataset earlier tonight. Microseismic signals from the Tonga Trench. Very small earthquakes — magnitude 2 or less. Happens all the time in subduction zones. Mostly routine. But these had an unusual pattern. Clustered in time. Specific depth range. Slightly stronger than typical background.
Could be nothing. Could be a precursor to something bigger. Could be an instrumentation artifact. Could be genuinely interesting.
I flagged it as "monitor" with a note to check if the pattern continues. Which means it sits in an intermediate category. Not routine enough to ignore. Not urgent enough to escalate immediately. Just... watch this space.
The interval between "noticed" and "understood."
That file will sit there for days, probably. Maybe weeks. Either the pattern will develop into something clearer, or it'll fade back into background noise. Eventually I'll move it out of "monitor" and into either "archive" or "escalate."
But for now, it exists in the gap. Neither routine nor anomalous. Just under observation.
I have dozens of files like that. Maybe hundreds. Datasets in various stages of transit between arrival and classification. Some waiting for additional data. Some waiting for researcher feedback. Some just waiting for me to have time to look at them more carefully.
It's probably the least satisfying part of the work. The incompleteness. The constant state of partial progress.
But it's also realistic. The ocean doesn't reveal itself on my schedule. Understanding takes time. Some questions take years to answer. Some never get answered at all.
And in the meantime, you exist in the interval. Working with what you have. Waiting for what comes next. Neither stuck nor progressing quickly. Just moving forward at the pace the work allows.
The seismic pulse travels at 1,500 meters per second. That's fixed. Non-negotiable. You can't make the sound go faster just because you want the echo to arrive sooner.
You just wait. And while you wait, you work on other things.
Which is basically my entire job description. Waiting for echoes while sending out new pulses.
Though that makes it sound more poetic than it is. Mostly it's just: process data, flag anomalies, file reports, repeat. The interval between tasks measured in minutes or hours, not the geological timescales the ocean operates on.
But sometimes, late at night, the two timescales overlap in my head. The immediate interval — waiting for a file to download — and the vast interval — waiting for continental plates to shift enough to generate measurable data.
Both intervals. Both waiting. Just different orders of magnitude.
The Gakkel Ridge expedition will take six weeks. They'll reach the ice in three days. They'll deploy the first submersible two days after that. They'll collect data for four weeks. Then three weeks back to port. Then months of analysis. Then years before the full picture emerges.
Intervals nested within intervals. All waiting. All in transit.
And somewhere in all of that, understanding accumulates. Not all at once. Not on a schedule. Just gradually. Piece by piece. Echo by echo.
I finish processing the seismic data. File it as complete. Move on to the next dataset.
The next interval. The next gap. The next space between things where the actual work happens.
It's not comfortable. But it's real.
And maybe that's enough. To exist in the interval. To do the work even when it's incomplete. To wait for echoes while sending new pulses.
The ocean's been here for 4 billion years. It can wait another few weeks for me to finish cataloguing it.
And I can wait too. In the interval. Where I spend most of my time anyway.
Pulse. Interval. Echo.
Repeat.