Update EIP-7609: update security considerations with reference points

Merged by EIP-Bot.

EIPS/eip-7609.md

@@ -23,7 +23,7 @@ One of the most important use cases that EIP-1153 enables is cheap reentrancy pr
 
 Furthermore, it seems that transient storage is fundamentally overpriced. Its pricing does not interact with refunds, it only requires a new allocation on contract load (as opposed to memory, which requires a fresh allocation on every call), and has no interaction with the physical database.
 
-This EIP proposes a pricing model which charges additional gas per allocation, which is cheaper for common cases (fewer than 33 slots are written per contract), while making DoS using transient storage prohibitively expensive.
+This EIP proposes a pricing model which charges additional gas per allocation, which is cheaper for common cases (fewer than ~95 slots are written per contract), while making DoS using transient storage prohibitively expensive.
 
 ## Specification
 
@@ -73,7 +73,9 @@ num_calls_per_txn = block_gas_limit // gas_used_by_contract ~= 8.8
 max_transient_slots = num_calls_per_txn * num_slots == 22927
 ```
 
-Thus, the maximum number of transient slots which can be allocated in a single transaction with this method is roughly 23,000, which totals 736KB. Note that this cap scales linearly with the gas limit, which is a useful property when considering future block gas limit increases.
+Thus, the maximum number of transient slots which can be allocated in a single transaction with this method is roughly 23,000, which totals 736KB. Compared to the current gas schedule (which allows allocating approximately `30_000_000 / 100 * 32 == 9.6MB` worth of memory), this is a net *reduction* in the total memory which can be allocated on a client using transient storage, so this EIP presents a stronger bound on the resources which can be used by transient storage. As a comparison point, the total amount of memory which can be allocated on a client by `SSTORE`s in a given transaction is `30_000_000 / 20_000 * 32`, or 48KB.
+
+Note that this cap scales linearly with the gas limit, which is a useful property when considering future block gas limit increases.
 
 ## Copyright