Hi did not say this, he said it failed which is different. You can recover from a failure, but cannot recover from death.
He may be too pessimistic, but many of his points are valid.
The article is very interesting and definitely worth reading.
I totally agree with this.
But I also totally agree with this:
Mike Hearn is just being overdramatic. Of course life will go on with or without him.
He is definitely overdramatic IMO too. I was much into network engineering in the mid 2000s and we kept on hearing many head figures lamenting over poor IPv6 adoption and the inevitable chaos that IPv4 exhaustion would bring. To some extent, I shared their opinion too, and I could throw up whenever I found myself envisioning a world of carrier-grade NAT everywhere. It would break the internet! The internet would no longer be P2P capable, big boo-hoos and all. Sure.
More than ten years later, recent developments over the last months show that IPv6 is finally gaining traction years after total IPv4 address space exhaustion occurred, and that in the mean time, the internet is still alive and well.
About the 1MB block size limit, I think the Bitcoin network can survive as is for quite a long time before a sane, worthy consensus can finally be reached. If economics and market rules give a clear enough incentive for the block size limit to increase, reality will follow suit.