"Linn Products is the Glasgow company Ivor Tiefenbrun founded in 1972, and if you know it at all you know it for the Sondek LP12, still widely regarded by its partisans as the finest record deck ever made."
I was a big audiophile right at that time. Auditioned both Sondek and Sota Star Saphire. Went with the latter which I still proudly own (Alphason Tonearm). Note how carefully the author phrased "...by its partisans..." when describing the Sondek as the best. Nothing, not even programing code style zealots today can compare to audiophiles and their "take" on what made for the best playback. Pretty sure the author did not want to open that can of worms by simply declaring the Sondek the best.
Turntables back then were pretty damn detailed re: technology. Not surprised Linn could make a great computer (in the day).
HTH, NSC
They got crushed by the commodity curve and Moore’s Law. But still a great story - and thankfully written by a real person.
The author’s idea that the commodity curve is over and that hardware is now cheap enough to make special purpose hardware viable is intriguing. Standardization used to be important because you needed to convince scarce programmers to invest in the platform, but AI has ended the scarcity of programmers so dedicated purpose hardware is more viable than ever.
Another trend, for example, might be centralized vs distributed: terminals (thin clients) and mainframes gave way to fat client PCs on prem, and then back to thin clients with cloud stuff.
Your tool has to set up a pressure wave in the mud column that is detectable miles away from the tool while the well is being drilled.
This is a good recent paper authored by an experienced drilling engineer about MWD/LWD drilling history and pulser designs and data rates that can be expected.
https://www.aade.org/application/files/1917/4604/2319/AADE-2...
As the days went by and the hole was progessively deeper it was inevitable that some part of the downhole BHA (bottom-hole assembly) would fail due to erosion from the drilling mud, erosion at the bit/formation interface, friction along the borehole wall, etc. The hope was always that your tool would function well enough until something else failed and necessitated a round trip to replace a critical component. The costs of the round trip were placed on the service company that had the failed equipment so even if your company supplied the MWD/LWD services and the directional drilling services (DD), if your tool failed the cost of the trip fell on your service and impacted your service quality assessment which affected your rig bonus calculation.
It was common for a DD with a failing mud motor to hang around the MWD shack or keep the MWD engineers on the phone, harassing the engineers to get them to admit that their tool is nearing the point where the toolface data was so low level that it was undecodable. If he could hang the trip on the MWD he would every time so the MWD engineers were incentivized to struggle through poor signal for as long as possible when they knew from the pressure data that the mud motor was about to crater or that the drill bit needed to be replaced.
Battery failures and erosion of the pulser valve components that resulted in signal amplitudes diminishing to the point where they were undetectable were the things you knew would happen and you just hoped that downhole conditions killed someone else's tool before yours inevitably failed.
I had to read a little since I had not checked on their progress in a while.
First, I like the backgrounds and experience levels of the key personnel in the company. Many are oil and gas industry veterans with a good mix of skills - drilling, deviated well design, fracking, downhole monitoring sensors, etc.
DAS deployed downhole as their paper describes should give excellent information about conditions near the boreholes as they pressurize and depressurize the formations through the enhanced fracture networks. Induced seismicity is a common side effect of fluid injection and anyone who has watched USGS earthquake data for California has likely identified the geothermal fields by their frequent seismicity. Reducing the levels of induced seismicity related to geothermal energy production will decrease the likelihood of formation damage due to accumulated stresses in the production field. It sounds like they are able to tie specific stress/relaxation events to pressurization events so that is a very useful tool.
A lot of the earthquakes in the Permian Basin area are related to fluid injection. A DAS network could possibly mitigate some of that so a technology transfer back to the O&G industry may benefit all of us.
I agree with their goal of expanding geothermal energy production as an integral part of the power generation grid since, like they say, it is completely renewable. It does take advantage of downhole conditions in order to produce the energy and there is an opportunity to utilize existing boreholes as geothermal generation sites after the oil and gas becomes uneconomical so it could give new life to old fields and preserve jobs in the area since there will already be a trained workforce locally.
Pretty interesting. I lost track of these guys and now I see that they IPO'd a couple months ago. I expect that their business and their competition will both be increasing over the next few years at least.
But the truth is, you also need to do the work. I used my conclusion about luck as an excuse to not even try. Not even in some grand way. Just in the grinding everyday way. In the way of, "You know what I should do?! I should ... meh. That'll never work."
Take it from me, kids. If you want to do something great, do it while you are still young enough to believe it's possible.
I owned a Linn Sondek turntabe in the 70's with a Denon cartridge.
Spent a crazy amount on Hi-Fi chasing the audiophile dream :-)
This sentence is a strong illustration of what I'm talking about:
> Since only OBJEKT ever knew where anything physically lived, objects could be relocated freely without touching a reference, so garbage collection went into the silicon too: a two-space compacting collector that walked the live objects and slid them into the other half of DRAM while execution carried on above, oblivious.
I mean, come on. Run-ons are one thing, but this is practically a lecture in a single sentence. :P
Your example is not even a run-on sentence!
I enjoyed reading it, many thanks to the author.
[1] https://en.wikipedia.org/wiki/Rekursiv#Physical_packaging
I would also say that productised general-purpose software was an undue bonanza taking unfair advantage of copyright, which shouldn't have allowed so many restrictions on code which is necessary to make devices perform their intended tasks.
Fortunately AI has been able to get started accomplishing some of the much-needed workarounds to these annoying copyright issues, like few humans have been able to do.
Regardless of whether programmers are scarce or abundant.
On a tangent, it sounds like a famous canal, but I would figure there are a number of little-known waterways where there might be a high-performance 21st century PC resting underwater along with some poor soul's bitcoin wallet :(
What ate them up was "what can you fit all on a chip with not many pins", followed by "what can you fit along with a cache on a chip with more pins", things move so much faster if everything's on the same die.
Tagged architectures are old, Burroughs mainframes had them back in the 70s along with rudimentary hardware objects (pageable even)
A true capability architecture needs separate register files for pointers and data with protections enforced when the address registers are loaded/stored, it's a step away from our models of linear address spaces that many of the languages we use today are based on. And any new CPU that requires everyone to learn a new language is probably a non-starter as a mainstream CPU