Friday, October 15, 2021

A Writer I Admire

Wouldn't it be great to write like Maciej Cegłowski? I've riffed off many of his riveting talks, including What Happens Next Will Amaze You, Haunted By Data, The Website Obesity Crisis and Anatomy of a Moral Panic. Now, in a must-read tweetstorm, Cegłowski takes on "Web3", the emerging name for the mania surrounding blockchains and cryptocurrencies. He starts from this tweet:
The replies it garnered are hilarious. Below the fold, some extracts from Cegłowski to persuade you to read his whole thread (Unroll here).

Thursday, October 14, 2021

The Great Mining Migration

China's Cryptocurrency Crackdown has been dramatically effective. The total hashrate dropped by over a half from its peak before recovering. As I write it is still down about 15% from the peak.

The latest figures from the Cambridge Bitcoin Energy Consumption Index provide more detail on what happened. In May China was producing 70.9 Exahash/sec and 44% of the total, as against 75% in 2019. In July, it produced none, triggering the collapse in the hash rate.

The gradual recovery happened as the containers of mining rigs reached their destinations, which by August were mostly in the US (42.7 Exahash/sec), Kazakhstan (21.9 Exahash/sec) and Canada (11.5 Exhash/sec).

If the migration continues to favor the US and Canada, which as of August accounted for about 45% of the total, it would bring closer the ability of Western nations to turn off Bitcoin, as outlined in Unstoppable Code?.

Friday, October 8, 2021

Talk At "Blockchain for Business" Conference

I was invited to be on a panel at the University of Arkansas' "Blockchain for Business" conference together with John Ryan and Dan Geer. Below the fold are my introductory remarks.

Tuesday, October 5, 2021

Cryptocurrency's Carbon Footprint Underestimated

Back in April I wrote Cryptocurrency's Carbon Footprint about the catastrophic carbon emissions of Proof-of-Work cryptocurrencies such as Bitcoin. It now turns out that I didn't know that half of it; the numbers I and everyone else has been using are greatly underestimated. Below the fold, based on my no doubt somewhat inadequate methodology, the real story.