Designing the First Communication Experiment
The previous Research Journal entry ended with a practical question:
What would the smallest credible communication experiment actually look like?
That question sounds as though it should lead immediately to a parts list.
It doesn't.
Before deciding what equipment to build, we first need to decide what the experiment must be capable of telling us.
That distinction is important.
An apparatus can produce interesting measurements while still being incapable of answering the question it was built to investigate.
What Are We Actually Testing?
The long-term question behind this part of the Beyond the Light Barrier project is whether information might somehow be transferred through an engineered spacetime connection.
But we do not currently know how to create such a connection.
We also have no experimental evidence from this project that a traversable wormhole, engineered spacetime communication channel, or faster-than-light information-transfer mechanism exists.
So our first laboratory experiment cannot reasonably be described as a test of a working wormhole.
The experimental question has to be narrower:
Can a carefully controlled transmitter and receiver produce a repeatable correlation that cannot be accounted for by known communication paths or experimental artifacts?
That question does not assume what the answer will be.
It also does not assume that an unexplained result, if one occurred, would be evidence of a wormhole.
It simply gives us something measurable.
The Simplest Architecture
At the highest level, the experiment needs two sides.
Side A: the transmitter.
This is where a controlled signal, excitation, or other experimental input would originate.
Side B: the receiver.
This is where instruments would look for a response correlated with the transmitted information.
Between them is the most important part of the experiment:
the controlled separation.
If an ordinary signal can simply leak from Side A to Side B, detecting that signal tells us very little.
The challenge therefore is not merely detecting something at the receiver.
The challenge is determining how it got there.
The Ordinary Paths Have to Be Taken Seriously
Suppose the transmitter changes state and, shortly afterward, the receiver registers a corresponding change.
That might initially look interesting.
But there are many ordinary explanations.
An electromagnetic signal could have leaked around the shielding.
A cable could provide an unintended electrical path.
Two instruments could share a ground connection.
A mechanical vibration could travel through the laboratory bench.
Temperature could change.
Software could inadvertently share information.
Two clocks could be synchronized incorrectly.
Or the apparent correlation could simply be statistical coincidence.
Every one of those explanations is more conventional than a new communication mechanism.
That means the experiment should be designed to find ordinary explanations rather than merely hoping they are absent.
Controls Are Part of the Experiment
A useful experimental design therefore needs more than a transmitter and receiver.
It needs controls.
For example, measurements could be repeated with the transmitter inactive.
They could be repeated with shielding changed.
The physical separation could be altered.
Dummy signals could be introduced.
The receiver analysis could sometimes be performed without knowing when the transmitter was active.
Different sensors could independently monitor electromagnetic, acoustic, thermal, and mechanical conditions.
If an apparent effect changes when one of these controls changes, that gives us information about its likely origin.
In many cases, discovering that an apparent anomaly has an ordinary explanation would be a successful experiment.
We would have learned what the apparatus was actually measuring.
Time Becomes Part of the Measurement
Communication is inherently connected to time.
If the transmitter changes at one moment and the receiver changes at another, we need to know those times accurately enough to compare them.
That means both sides of the experiment need a common or carefully characterized timebase.
The experimental record should eventually include synchronized instrument telemetry as well as synchronized video and, where useful, audio documentation.
Multiple camera views could record the overall apparatus, critical components, and instrument displays.
Those recordings would not replace scientific sensors.
They would provide an independent documentary record that could help correlate physical events with the telemetry and identify mundane disturbances that might otherwise be missed.
The Experiment Must Be Able to Say “No”
This may be the most important design requirement.
A credible experiment must be capable of producing a result that does not support the hypothesis.
If every possible measurement can be interpreted as evidence for the idea, then the experiment cannot really test the idea.
For this project, a perfectly legitimate result would be:
No statistically meaningful correlation was detected beyond the behavior expected from known coupling, noise, and measurement uncertainty.
Another legitimate result would be:
An apparent correlation was detected, but subsequent controls identified ordinary electromagnetic coupling as its source.
Neither result would be a failure of the research.
Both would constrain what we should try next.
What Would an Interesting Result Look Like?
Now consider the opposite possibility.
Suppose a repeatable correlation remained after known electromagnetic, electrical, acoustic, mechanical, thermal, software, and timing paths had been investigated.
That still would not establish a wormhole.
It would not establish faster-than-light communication.
And it would not establish new physics.
It would establish something much more modest:
The experiment has produced a repeatable observation that the present controls have not yet explained.
The correct response would then be to strengthen the controls, reproduce the result, change the apparatus, and invite independent attempts to find the missing explanation.
Extraordinary interpretations should come last, not first.
From Architecture to Hardware
We are now one step closer to an actual experiment.
We can describe its basic architecture:
- a controlled transmitter,
- an independently monitored receiver,
- a carefully characterized separation between them,
- sensors for ordinary environmental and coupling mechanisms,
- a synchronized timing system,
- a synchronized experimental record,
- control runs,
- and predefined criteria for evaluating the result.
But we still have not answered an important engineering question.
What physical system should we actually build?
That is where the research becomes more concrete.
Instead of starting with exotic hardware and asking what it might do, we can work backward from the measurement we need and determine what components would be required to make that measurement credibly.
That will be the next step.
Research Status
Current status: Experimental architecture development based on exploratory theoretical and engineering research.
No physical experiment described here has demonstrated a wormhole, engineered spacetime communication, faster-than-light information transfer, or any other anomalous communication mechanism. The architecture described in this entry establishes requirements for a future controlled experiment rather than reporting experimental results.
Sources & Further Reading
Michael S. Morris and Kip S. Thorne (1988)
“Wormholes in spacetime and their use for interstellar travel: A tool for teaching general relativity.”
American Journal of Physics, 56, 395–412.
DOI: 10.1119/1.15620
Michael S. Morris, Kip S. Thorne, and Ulvi Yurtsever (1988)
“Wormholes, Time Machines, and the Weak Energy Condition.”
Physical Review Letters, 61, 1446–1449.
DOI: 10.1103/PhysRevLett.61.1446
National Institute of Standards and Technology
Time and Frequency Division.
Background information on precision timing and measurement.
National Institute of Standards and Technology
Measurement Science.
Background on measurement, standards, calibration, and uncertainty.
The wormhole references above describe theoretical work in general relativity. The experimental architecture discussed in this journal entry is a Beyond the Light Barrier research concept and should not be interpreted as an apparatus established by those publications or as evidence that traversable wormholes can be engineered.
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