diff --git a/content/notes/ethereum.md b/content/notes/ethereum.md
index 088c5238a..998423668 100644
--- a/content/notes/ethereum.md
+++ b/content/notes/ethereum.md
@@ -44,3 +44,12 @@ ethereum whitepaper
 	- cloud computing
 	- p2p gambling
 	- on-chain decentralised marketplaces
+
+# Storage
+The state of ethereum is not an abstract concept as it is in [[bitcoin]]
+
+Ethereum is a transaction based state machine. 
+
+Activities such as transactions, contracts, and minig all change the state of the ethereum blockchain.
+
+e.g., an accout balance (stored in the state trie) which changes every time a transac
diff --git a/content/notes/think-writing.md b/content/notes/think-writing.md
index 7bcbc61e0..ff660c8a9 100644
--- a/content/notes/think-writing.md
+++ b/content/notes/think-writing.md
@@ -99,4 +99,4 @@ Did some research on [[merkle tree]]s. Think in bitcoin and ethereum the raw dat
 
 https://www.makeuseof.com/what-data-stored-bitcoin-blockchain/ From here it seems that within a block the transactions are stored separately from the merkle tree. And the number of transactions in a block cannot take up more than 1MB.
 
-https://hackernoon.com/getting-deep-into-ethereum-how-data-is-stored-in-ethereum-e3f669d96033
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+https://hackernoon.com/getting-deep-into-ethereum-how-data-is-stored-in-ethereum-e3f669d96033 [[ethereum#storage]]
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