# Lightning Network -- Fundamental Limitations
04 Apr 2022

Summary

-   Channel-open transactions must be broadcast on L1, but there is simply not enough L1-space.
-   “Factories” can onboard more users per L1 txn. Unfortunately, they can be sabotaged for free. CoinPool has the same problem (when it comes to LN-onboarding). The limitation is fundamental.
-   There are scenarios where LN-users consume _more_ bytes than L1 “onchain” users. These are interesting, especially when it comes to use of HTLCs.

The “conventional layer2 strategy” (of: “Core + LN + nothing else”) is almost certainly not viable. But a modified strategy, of “Core + Largeblock Sidechain + LN” is viable.

https://www.truthcoin.info/blog/lightning-limitations/