diff --git a/notes.md b/notes.md
index 7039755..1d34a19 100644
--- a/notes.md
+++ b/notes.md
@@ -32,3 +32,4 @@
 2015-01-13T05:11:00 - Refactor for clarity, might break a few tests though (prophet)
 2015-01-17T22:20:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (prophet)
 2015-01-17T06:27:00 - Implementing approach from a new paper read last night (prophet)
+2015-01-17T23:22:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (prophet)