Wayne Presby

#MountWashingtonCogRailway #Engineering #Railroads #RailwayPreservation #HeritageRail #SteamLocomotive #CivilEngineering Bought railroad in 1983 at the age of 26. In 2006 began designing diesels to replace steam engines. In 2007 we completed the base frame and running gear. Here is a picture of it being tested on the track using a small gas powered hydraulic power unit. We could go 1 to 2 mph.

@tonyseba @jamiearbib Read your book Tony. I loved it. The future is coming fast.

I am very excited to share that my new book — #STELLAR: A WORLD BEYOND LIMITS, AND HOW TO GET THERE — co-authored with my good friend @jamiearbib, is out on March 18th. Its aims are to explain the ‘extractive’ world we live in currently, set out a vision for the extraordinary #StellarWorld that is now possible, and provide a guide through the increasing turbulence that we’re experiencing because of this ongoing #transformation. It is the most important thing I have ever written, and I am looking forward to sharing it with you all. ✨ 📖

@JoeTegtmeyer @pbeisel @Tesla Elon is in hyperdrive.

In this excellent article by @pbeisel , Phil discusses the recently announced @Tesla Terafab production facility & makes this interesting point: “At current industry efficiency, that translates to about 1–2 million sq ft of cleanroom space. Since cleanroom typically makes up 20–35% of total facility area, the initial Terafab phase would likely span ~4 to 10 million sq ft. That puts the starting factory right in the same ballpark as Gigafactory Texas (~10 million sq ft).” To help illustrate the current main “Campus” construction sites at Giga Texas & to show scale, I thought I’d make this layout of the Giga Texas property & each of the main Campuses: The Central Campus (which consists of Cortex 2.0, the DIE Shop, Battery Cathode Plant & Crash Test Facility) The West Support Campus (consisting of the W WOW Yard, Outbound Lot, EOL Facility & new Test Track) The new gigantic North Campus site which is in the ground clearing & grade prep stage. The North Campus site (outlined in yellow) is large enough for another complete Giga Texas factory (which I’ve overlayed for illustration), and this matches quite well with Phil’s estimate of ~10 million sq ft). This is also where the new Optimus production facility is being constructed, so this may indicate one multi-purpose factory unlike anything we have seen. I’ve included three pertinent permit documents to help further illustrate the nature of these Campus development sites. What do you think is planned? Certainly, there will be a lot to watch out for as we move further into 2026!

New diesel close to completion. 2007.

Machinery platform added to subframe and trucks.

#MountWashingtonCogRailway #Engineering #Railroads #RailwayPreservation #HeritageRail #SteamLocomotive #CivilEngineering Bought railroad in 1983 at the age of 26. In 2006 began designing diesels to replace steam engines. In 2007 we completed the base frame and running gear. Here is a picture of it being tested on the track using a small gas powered hydraulic power unit. We could go 1 to 2 mph.

2008 One of first passenger runs with new diesel locomotive before christening notice lack of decals.

2008 New diesel complete and fully tested. Picture of official unveiling and naming of locomotive M1. Called Wajo Nanatasis or Mountain Hummingbird in Abenaki. Holding flag is Charles Kenison and Al LaPrade primary designers. Christened by Governor John Lynch of New Hampshire.

@pbeisel I can't wait. Every time I get a new update it is like getting a brand new car.

FSD 14.3. It does exist and is in testing now. Guess: all quiet since 14.2.2.5 since they have been heads down on this release.

First Presby (originally Presbrey) was pressed into service on a british man of war in 1700 at the age of 11 and jumped ship in Boston harbor in 1710. He was married to a descendant of a passenger on the Mayflower.

My family has been having problems with immigrants ever since we came to this country.😄

@ton_aarts Short seller.

107 pedestrians and cyclists now killed by a Tesla. And 14 years of promising "next year" "For sure" .. kron4.com/news/bay-area/…

@Matt_Pinner Humanity

In your opinion, what's the biggest threat to humanity?

Hero first mountain climbing locomotive ever built named after Greek inventor and philosopher who conceived (unknowingly) of the first steam engine in the world. Later renamed "Peppersass" because tourist said it looked like pepper sauce bottle.

Mount Washington Cog Railway under construction circa 1867. Sawmill, first locomotive and early passenger coach. Two years before transcontinental railway completed.

Sylvester Marsh circa 1866. The man, the legend. Conceived of and built the Mount Washington Cog Railway first mountain climbing train in the world. He had to use first principles thinking there was nothing to copy. #Engineering #Railroads #MountWashingtonCogRailway

@SawyerMerritt I hate new taxes but if it is earmarked to fix roads I think it is fare because we are losing fuel taxes from EV's that just use electricity.

NEWS: US House transport committee head wants to collect EV fees for highway repairs. Representative Sam Graves, said he plans to take up a multi-year bill in early April. Last year, House Republicans ​proposed a new $250 annual fee on EVs and $100 for hybrid EVs ​but it was not included in a massive tax and ⁠spending bill. The current five-year surface transportation law expires on September ​30. "We would like to get money from EVs," Graves said at a ​U.S. Chamber of Commerce infrastructure event, saying he expects the five-year bill to include $500 billion to $550 billion in funding for highways and bridges. usnews.com/news/us/articl…

@Susanelonma1a That has got to be a tough job. X has dozens of imposters. I get messages from them every day.

Hi! I enjoy what you share here on X. I’ve tried following you a few times, but it hasn’t gone through. If you don’t mind trying from your side, I’d love to connect.

@pbeisel Love your in depth review of the new technologies. Very enlightening.

@WaynePresby Only cheeseburgers

Terafab may be the most essential vertical integration Tesla has ever undertaken— and it is truly non-optional. It will take years to build and will test even Elon’s speedrunning abilities to the limit, but that won’t stop him from trying. The breakthrough likely lies in overhauling the overall facility’s cleanroom model. By moving wafers in sealed pods with localized micro-environments, the fab no longer needs a monolithic ultra-clean space. Elon’s line about “eating cheeseburgers and smoking cigars” on the fab floor isn’t silly, it’s the practical reality of a radically simpler, cheaper, faster approach that could finally change the economics of chipmaking. This is all forced by the brutal “pinch” in chip supply. Tesla must produce on the order of 100–200 billion AI chips per year just to saturate its roadmap. That volume powers: FSD cars & Robotaxis (tens of millions of vehicles needing AI5 inference for near-perfect autonomy), Physical Optimus (scaling from thousands today to millions per year, each requiring AI5/AI6-level compute), Digital Optimus (the new xAI-Tesla software agents for digital/office automation, running massive inference clusters), Space-based data centers (AI7/Dojo3 orbital compute for GW-scale training and inference beyond Earth limits). AI5 delivers the ~10× leap for vehicles and early robots; AI6 shifts focus to Optimus + terrestrial DCs; AI7 goes orbital. No external foundry (TSMC, Samsung, etc.) can deliver that scale or timeline— hence the Terafab launch. Without it, the entire robotics + autonomy future hits a brick wall. Terafab isn’t optional; it’s the only way forward.