Does it matter even in the slightest why the block size limit was put in place? It does not. Bitcoin is a decentralized payment network, and the relationship between utility (block size) and decentralization is empirical. Why the 1MB limit was put in place at the time might be a historically interesting question, but it bears little relevance to the present engineering issues.

On Tue, Jul 28, 2015 at 5:43 PM, Jean-Paul Kogelman via bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org> wrote:

> Enter a “temporary” anti-spam measure - a one megabyte block size limit. Let’s test this out, then increase it once we see how things work. So far so good…
>

The block size limit was put in place as an anti-DoS measure (monster blocks), not "anti-spam". It was never intended to have any economic effect, not on spam and not on any future fee market.


jp

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