diff --git a/MEV_on_Ethereum/searcher-builder-validator-sequencer/README.md b/MEV_on_Ethereum/searcher-builder-validator-sequencer/README.md
new file mode 100644
index 0000000..579083a
--- /dev/null
+++ b/MEV_on_Ethereum/searcher-builder-validator-sequencer/README.md
@@ -0,0 +1,18 @@
+## Notes on Searcher-Builder-Validator/Sequencer (SBV)
+
+<br>
+
+### tl; dr
+
+* cooperation between proposers seems unlike in an unfair market, especially in a semi-permissionless half-centralized sequencer setup
+* considering slashing risks, the incentives to become a sequencer (despite tx fees) are unclear
+* having a Searcher-Builder-Validator/Sequencer supply chain could lead to trusted social contracts between all actors
+* should MEV be addressed on the application layer? this generate security concerns on the underlying protocol
+* a fair marketplace would let searchers to look for predictable MEV state changes with profitable actions, with the security of the protocol (with the sequencer itself)
+
+
+<br>
+
+---
+
+### resources