diff --git a/.zk/notebook.db b/.zk/notebook.db
index a679318..c522d3b 100644
Binary files a/.zk/notebook.db and b/.zk/notebook.db differ
diff --git a/zk/Bitwise_operators.md b/zk/Bitwise_operators.md
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--- a/zk/Bitwise_operators.md
+++ b/zk/Bitwise_operators.md
@@ -62,4 +62,12 @@ b = 7 = 0111
 
 This leaves us with 0111 which is equal to 7 in denary.
 
+## Why use them?
+
+Bitwise operations are more of a hallmark of lower-level programming. As bit
+operations are the fastest and lowest level of computation, being able to
+directly access and operate on bits within a programming language can be
+beneficial when efficiency and speed of execution is a factor or when memory is
+constrained.
+
 ## Related notes