user78504: Why the size of the block 656143 is so big (Size: 2,337,727 bytes), taking into account a relatively small number of transactions (Number of Transactions: 84)?
Extra question: What is the block size limit in Bitcoin nowadays?
I found some guidelines here:

Bitcoin blocks now have a theoretical maximum size of 4 megabytes and a more realistic maximum size of 2 megabytes.

However, the size of the block 656143 is ~2.3Mb; therefore, a "more realistic maximum" is not that realistic :)

user24925: 
Why the size of the block 656143 is so big (Size: 2,337,727 bytes), taking into account a relatively small number of transactions (Number of Transactions: 84)?

It contains a number of transactions which are substantially larger than average (it is spending a very large number of outputs, legacy P2SH multisig scripts), so an assumption based on the average size of transactions does not hold.


However, the size of the block 656143 is ~2.3Mb; therefore, a "more realistic maximum" is not that realistic :)

The quote refers to the assumed average size, not including obvious outliers like this.

78504: <p>Why the size of the block <a href="https://www.blockchain.com/btc/block/656143" rel="nofollow noreferrer">656143</a> is so big (<code>Size</code>: <strong>2,337,727</strong> bytes), taking into account a relatively small number of transactions (<code>Number of Transactions</code>: <strong>84</strong>)?</p>
<p><strong>Extra question</strong>: What is the block size limit in Bitcoin nowadays?
I found some guidelines <a href="https://bitcoinmagazine.com/what-is-bitcoin/what-is-the-bitcoin-block-size-limit" rel="nofollow noreferrer">here</a>:</p>
<blockquote>
<p>Bitcoin blocks now have a theoretical maximum size of 4 megabytes and a more realistic maximum size of 2 megabytes.</p>
</blockquote>
<p>However, the size of the block <a href="https://www.blockchain.com/btc/block/656143" rel="nofollow noreferrer">656143</a> is ~2.3Mb; therefore, a &quot;more realistic maximum&quot; is not that realistic :)</p>
 24925: <blockquote>
<p>Why the size of the block 656143 is so big (Size: 2,337,727 bytes), taking into account a relatively small number of transactions (Number of Transactions: 84)?</p>
</blockquote>
<p>It contains a number of transactions which are substantially larger than average (it is spending a very large number of outputs, legacy P2SH multisig scripts), so an assumption based on the average size of transactions does not hold.</p>
<p><a href="https://i.stack.imgur.com/YMVeB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YMVeB.png" alt="duh?" /></a></p>
<blockquote>
<p>However, the size of the block 656143 is ~2.3Mb; therefore, a &quot;more realistic maximum&quot; is not that realistic :)</p>
</blockquote>
<p>The quote refers to the assumed average size, not including obvious outliers like this.</p>
