diff --git a/journal/2024-07-12.md b/journal/2024-07-12.md
index 0dfc9799a..c8eaa9d2c 100644
--- a/journal/2024-07-12.md
+++ b/journal/2024-07-12.md
@@ -13,3 +13,5 @@
     - is that a valid [[at protocol]] uri? I believe it sort of should be but I haven't checked :)
 - Here I am having counted the primes up to 1000: [[168]]. So down to 16.8% of numbers being prime.
   - The [[Prime number theorem]] is what I was inching towards 
+  - https://en.wikipedia.org/wiki/Prime-counting_function#Table_of_%CF%80(x),_x/log(x),_and_li(x) is a [[great table]]
+  - The ratio is roughly (x/log(x))