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David Chisnall (*Now with 50% more sarcasm!*)

@david_chisnall@infosec.exchange

I am Director of System Architecture at SCI Semiconductor and a Visiting Researcher at the University of Cambridge Computer Laboratory. I remain actively involved in the #CHERI project, where I led the early language / compiler strand of the research, and am the maintainer of the #CHERIoT Platform.

I was on the FreeBSD Core Team for two terms, have been an LLVM developer since 2008, am the author of the GNUstep Objective-C runtime (libobjc2 and associated clang support), and am responsible for libcxxrt and the BSD-licensed device tree compiler.

Opinions expressed by me are not necessarily opinions. In all probability they are random ramblings and should be ignored. Failure to ignore may result in severe boredom and / or confusion. Shake well before opening. Keep refrigerated.

Warning: May contain greater than the recommended daily allowance of sarcasm.

No license, implied or explicit, is granted to use any of my posts for training AI models.

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The recent post criticising Free Software advocates for advocating user-modifiable software and then being annoyed at LLMs annoys me and the reason is best illustrated by this analogy:

Public-transport advocates spend years advocating for a connected public-transport infrastructure, where it’s easy to take a small combination of busses, metros, trams, and trains to get from anywhere to anywhere. The network would be efficient and operated as a non-profit-making public good, making individual movement cheap (or, ideally, free). They work with municipalities to build out some of this infrastructure, persuade national governments to invest in the longer routes, and so on.

Someone comes along with a massive subsidy for a handful of private taxi companies to hire a bunch of drivers and give free (paid for by investors) ride to everyone. The drivers are immigrants who don’t speak the language very well, which is great for the taxi companies because they are easy to exploit (they are, in fact, underpaid and put in dangerous situations routinely). The owners of the taxis are pocketing a load of investor money for every ride though.

When you get in one of these taxis, there’s a 90% chance they’ll take you where you want, a 9% chance they’ll take you somewhere nearby, and a 1% chance they’ll just drop you off in a dangerous part of town. A bunch of people are mugged and a few more murdered as a result of this, but the companies aren’t liable. The investors behind this tell everyone ‘don’t bother learning to drive, there’s no point, our taxis will take you anywhere, for much less money!’. At the same time, ridership on existing public transport drops off, leading to calls to cut its funding and there are mass redundancies for bus drivers and so on. The taxis are all diesel and heavily polluting, leading to worse air quality everywhere they go. To make sure that they can pick people up easily, the ones not actively giving rides are constantly circulating, placing huge strain on road infrastructure and further increasing pollution.

And then someone says to those public-transport advocates: ‘this is what you wanted, why are you unhappy just because it’s not delivered in the way you imagined?’