Bitcoin's First 1.6MB Block Has Been Mined

TLDR (from article)

But now that we are seeing these slightly bigger blocks, claims are being made that segwit’s method of increasing capacity is actually very inefficient.

In comparing some numbers the 1.6MB block had:

  Block size: 1602023
  Number of transactions: 833
  Input count + Output count: 11073
  Bytes per IO address: 144

While a random non-segwit block (483,182) had:

  Block size: 999931
  Number of transactions: 2110
  Input count + Output count: 10574
  Bytes per IO address: 95

The segwit block, therefore, which is near the practical limit of bitcoin’s current blocksize rules, was able to handle only 500 more inputs and outputs out of some 11,000. Making it an increase of just 5%, instead of 50% as would be the case for a non-segwit 1.6MB block.