Add content related to pen and paper.

content70-offline.md

@@ -2,4 +2,15 @@
 
 # Offline Solutions
 
-## Pen & Paper!
+There are also alternatives to consider that avoid using electronics completely!
+
+## Pen & Paper
+
+A small notepad and a set of good pens can cost under $5 USD.
+
+Some may consider this wasteful, but at the end of the day, it saves:
+- time from the lack of distractions,
+- energy since it is easier to focus on, and
+- electricity since devices need power to run.
+
+Even though your electronic may not waste any physical resources, it requires power to run, which needs to be fueled somehow.