diff --git a/knowledge base/best practices.md b/knowledge base/best practices.md
index 8883a2f..a5369df 100644
--- a/knowledge base/best practices.md
+++ b/knowledge base/best practices.md
@@ -27,8 +27,12 @@ What really worked for me.
implement.
Things change constantly: new technologies are given birth often, and processes improve. Also, now you know better
then before.
-- Focus on the real problem at hand.
+- Gain the hard skills required to solve complex problems, but only deploy complex solutions when they are actually,
+ _really_, needed.
+- Focus on the **real** problem at hand.
Beware the [the XY problem].
+- When making a **business** decision, it's generally good to pick the simplest, fastest, and cheapest option.
+ When making a **career** decision, it pays to be an expert in hard things.
- Do not make things more complicated than they **need** to be.
Also read [Death by a thousand microservices].
- Keep things simple (KISS approach) **with respect of your ultimate goal** and not only for the sake of
@@ -172,6 +176,7 @@ Listed in order of addition:
- [Are We Celebrating the Wrong Leaders? - Martin Gutmann]
- [The "action fallacy" tells us that the most effective leaders are unseen]
- [Death by a thousand microservices]
+- [Maybe you do need Kubernetes]