diff --git a/src/main.rs b/src/main.rs
index e7a11a9..c6d95f2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,7 @@
+#![feature(allocator_api)]
+
+mod structure;
+
 fn main() {
     println!("Hello, world!");
 }
diff --git a/src/structure/mod.rs b/src/structure/mod.rs
new file mode 100644
index 0000000..3f55b1a
--- /dev/null
+++ b/src/structure/mod.rs
@@ -0,0 +1,2 @@
+mod neuron;
+mod sensoric;
diff --git a/src/structure/neuron.rs b/src/structure/neuron.rs
new file mode 100644
index 0000000..b75f0b6
--- /dev/null
+++ b/src/structure/neuron.rs
@@ -0,0 +1,20 @@
+/*
+
+Neuron:
+condition of beeing fired
+duration
+neurons that already have been fired
+neurons that haven't been fired
+connection strenght
+
+System:
+neurons
+connections
+need for new neurons
+
+Brain:
+systems
+
+*/
+
+
diff --git a/src/structure/sensoric.rs b/src/structure/sensoric.rs
new file mode 100644
index 0000000..56acf1b
--- /dev/null
+++ b/src/structure/sensoric.rs
@@ -0,0 +1,13 @@
+/*
+
+
+
+*/
+
+trait Sensor {
+    type Packet;
+
+    fn input(&self) -> Self::Packet;
+}
+
+