The message was clear when it left the source. Seven children, St. Elizabeth Hospital, East Berlin, dying of meningitis, the antitoxin was synthesized at the free-world laboratories in Heidelberg, the courier was a girl named Greta Weiss, nineteen years old, Jewish, refugee, and she carried the vial in an insulated container sewn into the lining of her coat, and the message said: deliver to Dr. Schmidt, Room 4, East Berlin, before 6 AM, or the children die. The message was clear, which was the state of information at the moment of transmission, when the signal had not yet been corrupted by the medium, and the medium was human beings, and human beings were the worst possible medium for information transmission, because human beings added interpretation, and interpretation was noise, and noise was entropy, and entropy was the force that turned clear messages into garbled transmissions, and the transmission from the source to the children was going to pass through at least six human beings, and each human being was a source of noise, and the noise accumulated with each hop, and the accumulated noise was the difference between the message that was sent and the message that was received, and the difference was the story of the Cold War, which was a story of messages that were sent and messages that were received and the received messages were never the sent messages, and the difference was the space where things died, and the seven children were in that space, and the antitoxin was in that space, and Greta Weiss was in that space, and the space was the fog of information, which was the same as the fog of war, which was the same as the fog of everything, because everything was uncertain, and certainty was the luxury of people who did not have to transmit messages through hostile territory, and Greta was transmitting a message through hostile territory, and the territory was East Berlin, and the hostility was institutionalized, and the institution was the East German state, and the state's hostility was directed at information, because information was power, and the state controlled information, and Greta's message was unauthorized information, and unauthorized information was contraband, and contraband was illegal, and illegal things were punished, and the punishment was prison or worse, and Greta knew this, and she carried the message through the knowledge of the punishment, and the knowledge was part of the message, and the message was larger than the words, and the words were only the carrier signal, and the message was the meaning, and the meaning was seven children living, and the meaning was transmitted through the carrier signal, and the carrier signal was Greta's body, and Greta was the carrier signal, and the message was in the lining of her coat, and the lining was the medium, and the medium was fabric, and the fabric was the space between the message and the world, and the space was where the noise was added, and the noise was the question of the guard at the checkpoint, and the question was the first hop in the transmission chain, and each hop added noise, and the noise was the difference between the message sent and the message received, and the difference grew with each hop, and the final message that the children received was the original message minus the accumulated noise, and the noise was the questions and the glances and the delays and the interpretations and the kindnesses and the warnings and the lies and the truths and the everything that human beings added to every message they transmitted, and the accumulation of everything was entropy, and entropy was the enemy of the message, and the message was the children, and the children were the product of the message, and the product was life, and life was the opposite of entropy, and the transmission of the message was the battle against entropy, and Greta was fighting entropy with her body, and her body was the carrier signal, and the vial was the data, and the data was the antitoxin, and the antitoxin was the cure, and the cure was the message, and the message was life, and life was the battle against entropy, and Greta was the fighter, and the fight was the transmission, and the transmission was the story.

The message degraded at the first checkpoint. Greta crossed from West Berlin into East Berlin at Friedrichstrasse at 2 AM, and the East German guard asked for her papers, and she handed him papers that were technically correct but slightly wrong because they were forged by a man who was very good but not perfect, and the guard looked at them for a long time, and Greta stood very still and did not breathe and the vial was sewn into her coat and the message was getting shorter with every second, because the guard's questioning was a form of entropy, and questioning always increased entropy, because to question a message is to add noise to the signal, and noise is the enemy of transmission, and Greta's heart was beating so fast that she was sure the guard could hear it and know that the message was inside her and not in the papers, which were blank inside, which was a small lie, which was a small entropy that would grow. The guard was a young man, which was important, because young guards were different from old guards, and the difference was a form of noise, and the noise was the variable that determined the quality of the transmission, and young guards were uncertain, and uncertainty was a form of noise, and the noise was the gap between the message sent and the message received, and the gap was the space where the outcome was determined, and the young guard was in the gap, and the gap was the space where Greta's life and the seven children's lives existed in superposition, and the guard's decision would collapse the superposition, and the collapse was the transmission, and the transmission was the message, and the message was the children, and the children were life, and the young guard was uncertainty, and uncertainty was the space between life and death, and the guard looked at the papers, and the papers were slightly wrong, and the wrongness was the noise, and the noise was the gap, and the gap was the space where the children lived or died, and the guard was in the gap, and the guard was uncertainty, and uncertainty was the opposite of entropy, and the opposite of entropy was order, and order was the message, and the message was the children, and the guard handed back the papers and nodded and Greta walked through and the message had lost one word: the word before, because the guard had not asked about timing, and timing was part of the message, and without the word before, the message became: deliver to Dr. Schmidt, Room 4, East Berlin, or the children die, which is a message that can be delayed, which is a message that can arrive too late, which is a message that has already degraded enough to be useless.

The message degraded at the second checkpoint: the S-Bahn station. Greta was on the train, and the train was stopped between stations by a power failure, which was not unusual in 1962 East Berlin, where the electrical grid was held together by hope and Soviet-era equipment that had been obsolete since 1950, and the lights went out and the passengers began to panic and Greta felt the insulated container shift in her coat and she pressed it against her chest and she said to the woman sitting across from her, who was an East German matron of indeterminate age and expressionless face, the words: my sister is sick, there is medicine for seven children, I need to get to Alexanderplatz, and the message was degrading rapidly now, because to explain the mission to a stranger was to add human interpretation to the signal, and human interpretation always changed the message, and the matron looked at her and said something that was not in the original message, which was: the trains do not run at night, it is dangerous for a girl to be alone in East Berlin, and the message had been corrupted by concern, which was perhaps the most dangerous form of corruption of all, because concern was a form of love, and love was a form of noise, and noise was entropy, and entropy was the force that turned clear messages into garbled transmissions, and turned precise instructions into vague intentions, and turned the vial into a story, and the story into a rumor, and the rumor into a memory, and the memory into nothing, and the nothing was the death of the seven children, and the death was the failure of the transmission, and the failure was the entropy winning, and entropy always won, eventually, because entropy was the direction of the universe, and the universe was moving toward disorder, and the message was order, and the transmission was the battle against the universe, and Greta was fighting the universe with a vial in her coat and a story in her mouth and a matron across from her who was a source of noise and a variable in the equation and the equation was the message and the message was the children and the children were the product and the product was life and life was the opposite of the universe's direction and Greta was fighting the universe and the universe was entropy and entropy was the matron's concern and the concern was the question and the question was the noise and the noise was the degradation and the degradation was the difference between the message sent and the message received and the difference was the children's lives and the lives were in the difference and the difference was growing and the growth was the matron speaking and the speaking was the noise and the noise was the universe winning and the universe was winning and Greta was losing and the seven children were losing and the loss was entropy and entropy was the end of everything and the end was silence and the silence was the death of the message and the message was the children and the children were life and life was the battle and the battle was transmission and transmission was Greta and Greta was the carrier signal and the signal was fading and the fading was entropy and entropy was winning and Greta was losing and the children were dying and the dying was the end of the transmission and the transmission was the fight and the fight was love and love was the signal and the signal was Greta and Greta was nineteen and nineteen was the age of the carrier signal and the signal was strong and the signal was fighting and the fighting was the transmission and the transmission was succeeding and the succeeding was the matron doing something that the original message had not predicted.

But the matron did something that the original message had not predicted: she opened her own bag and pulled out a small flashlight and said: I will walk you to Alexanderplatz. It is dark. It is not safe. And she walked with Greta through the empty streets of East Berlin, and the flashlight beam was a thin line of certainty in a world of fog, and Greta carried the message with the degradation growing with every step, because every word the matron spoke was another piece of entropy, and every street they passed was another variable in an equation that had too many variables, and by the time they reached the hospital, the message was a shadow of what it had been, and the matron said: I hope the children are okay, and Greta said: Thank you, and the matron walked away and the message continued its degradation, because that is what messages do, they degrade over distance, they lose information with every hop, every relay, every pair of hands that touches them, and the final message that reached Dr. Schmidt in Room 4 was not the original message at all, it was a story that a girl had told a matron who had told a nurse who had told a doctor, and by the time it reached the children, the word before had been lost, and the word seven had been lost, and the word antitoxin had been lost, and the word Heidelberg had been lost, and all that remained was the word children, and the word medicine, and the word now, and Dr. Schmidt understood those words, and he administered the antitoxin, and the children lived, and the message had been degraded to its essential core, which is what happens when entropy strips away everything that is not necessary, which is what happens when you strip away the timing and the specifics and the logistics and the details, and all that remains is the thing that mattered in the first place: the children lived. The message had never arrived, not as it was sent, but the essence of the message had arrived, and the essence was the children living, and the living was the transmission that had succeeded despite the entropy, despite the degradation, despite the noise, despite the universe's relentless march toward disorder, and Greta had fought the universe with a vial in her coat and a story in her mouth and a matron who had become an ally, and the ally had been a source of noise and a source of salvation, and the duality was the nature of information, which was that everything that corrupted the message also sustained it, and the corruption was the degradation and the sustenance was the matron's flashlight and the flashlight was the beam of certainty in the fog and the fog was the entropy and the beam was the message and the message was the children and the children were life and life was the victory over entropy and the victory was temporary and entropy always won eventually and the eventual was death and the death was the end of the message and the message was the children and the children would die someday and the dying was entropy and the living was the temporary victory and the temporary victory was the only victory there was and the only victory was enough and enough was the children living and the living was the message and the message was Greta and Greta was the transmission and the transmission was the fight and the fight was love and love was the signal and the signal was clear at the source and degraded at the destination and the degradation was the distance and the distance was the fog and the fog was the world and the world was entropy and entropy was the direction of the universe and the universe was moving toward silence and the message was moving toward the children and the children were moving toward life and life was moving toward the end and the end was entropy and the movement was the transmission and the transmission was Greta and Greta was nineteen and nineteen was the age of the carrier signal and the signal was strong and the signal was love and love was the message and the message was the children and the children were living and the living was the victory and the victory was temporary and the temporary was the only thing that was real and the real was the children living and the living was now and now was the word that remained and the word was enough. """