> For the complete documentation index, see [llms.txt](https://hub.bsvblockchain.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hub.bsvblockchain.org/higher-learning/bsv-academy/proof-of-work-the-only-viable-consensus-mechanism/how-scaled-pow-actually-works/train-analogy.md).

# Train Analogy

<figure><img src="/files/LRGfQHyxmNVsL0BrLmbr" alt=""><figcaption></figcaption></figure>

**Think of it like two trains** with compartments of equal size and the same number of carriages. The first one (BTC) fits only a small number of seats in each compartment, while the second one (BSV) fills it to capacity. Though both trains will require the same energy to get to their destination, the consumption per passenger will be significantly lower for the second one.


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