diff --git a/.gitignore b/.gitignore
index cb6a416..dce8922 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 result*
 .direnv
 .envrc
+main.pdf
diff --git a/bibliography.bib b/bibliography.bib
index e69de29..ddf1d42 100644
--- a/bibliography.bib
+++ b/bibliography.bib
@@ -0,0 +1,10 @@
+@article{testy,
+  title={Citation analysis},
+  author={Nicolaisen, Jeppe},
+  journal={Annual review of information science and technology},
+  volume={41},
+  number={1},
+  pages={609--641},
+  year={2007},
+  publisher={Wiley Subscription Services, Inc., A Wiley Company Hoboken}
+}
diff --git a/flake.nix b/flake.nix
index c21d1bb..efce5e3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -30,7 +30,8 @@
 
       typixLib = typix.lib.${system};
 
-      src = typixLib.cleanTypstSource ./.;
+      #src = typixLib.cleanTypstSource ./.;
+      src = ./.;
       commonArgs = {
         typstSource = "main.typ";
 
diff --git a/main.pdf b/main.pdf
index ccde7a6..e71b7e8 100644
Binary files a/main.pdf and b/main.pdf differ
diff --git a/main.typ b/main.typ
index 595812d..05edbfc 100644
--- a/main.typ
+++ b/main.typ
@@ -1,3 +1,5 @@
+#import "@preview/wordometer:0.1.4": word-count, total-words
+
 #set page(
   paper: "a4",
   numbering: "-1-",
@@ -14,7 +16,7 @@ Process Essay\
 May 17th, 2025
 
 #align(center, text(size: 17pt, weight: "bold")[
-  *Essay title*
+  *Around the world in 133 ms*
 ])
 
 #set align(left)
@@ -22,20 +24,45 @@ May 17th, 2025
   justify: true,
   leading: 2em,
   spacing: 2em,
-  first-line-indent: (amount: 5em, all: true)
+  first-line-indent: (amount: 3em, all: true)
 )
 
-#lorem(200)
+#show: word-count
 
-#lorem(200)
+Have you ever wondered what really happens with your voice when you talking to someone on the phone?
+From the instant the soundwaves leave your throat until they reach the ear of the person you are talking to,
+a series of analog and digital processes collaborate to carry your message.
+In fact, this whole process can be broken down into three major steps -- sampling, quantisation and modulation.
+In the course of this essay, we will investigate each of these steps in more depth to understand how modern
+communication works on a technical level.
+//To understand how we communicate across the globe on a technical level, we begin with the most primitive
+//instrument of all: the human voice.
 
-#lorem(200)
+In the sampling process, an analogue signal is transformed into its digital representation.
+This signal can be interpreted as any kind of waveform or motion that has not been processed by
+a digital device yet.
+For example, the sound of your voice or the tone of a guitar string is a suiting type of signal that we
+want to digitize.
+However, a digital device like a computer or a phone cannot unterstand such an analogue signal, thus we have
+to first convert it into some kind of electrical signal the device can unterstand.
+We can achieve that by taking repeated "snapshots" of the current state of the analogue signal and saving
+the corresponding value.
+The resulting signal is now so called "time discreet", because we went from a continuous signal that has a value
+for every imaginable point in time to one where such values only exist at fixed, predefined points in time
+(i.e. every second).
+Going on, we now have a signal that consists of repeated snapshots of the originating signal where each value
+can still be considered as continuous
 
-#lorem(200)
+//To see how sampling works, we start with the sounds you make when you speak -- combinations of multiple sound waves at varying frequencies.
+/*For our purposes, however, we can simplify this complexity by modeling your voice as a single
+continuous sine wave, since this idealization does not affect the sampling process.
+Furthermore, we can think of this sine wave as the very first input into our communication pipeline.
+With the analogue signal established, we can go on and discuss the way our signal is transformed into a digital
+representation.
+*/
 
-#lorem(200)
-
-#lorem(200)
+Essay has a total of #total-words words.
 
 #pagebreak()
-#bibliography("bibliography.bib", style: "ieee", title: "References")
+
+#bibliography("./bibliography.bib", style: "ieee", title: "References")