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August 20, 2018, 08:40:57 PM

@MarkFriedenbach https://twitter.com/MarkFriedenbach/status/1030211193544134658
I will be giving a talk at #ScalingBitcoin on how a block size increase up to 3600x the present size and a change of proof-of-work can be achieved with a fully backwards compatible soft-fork—old clients see all transactions and valid SHA256 block headers.

This is not good news if onchain.  I hope this is a sidechain solution.

As I understand it, Mark is not proposing that any of these changes actually be made - he is just going to do a presentation that he says demonstrates that it is theoretically possible to do basically any change as a soft fork.