Mark Fershteyn (@markfersh) header
Mark Fershteyn (@markfersh) profile picture

7 figure SaaS CEO → AI trainer and game dev. Sharing everything I learn👇

New York, USA
Joined January 2012
Photo by Mark Fershteyn (@markfersh)Photo by Mark Fershteyn (@markfersh)Photo by Mark Fershteyn (@markfersh)Photo by Mark Fershteyn (@markfersh)Photo by Mark Fershteyn (@markfersh)Photo by Mark Fershteyn (@markfersh)Photo by Mark Fershteyn (@markfersh)Photo by Mark Fershteyn (@markfersh)Photo by Mark Fershteyn (@markfersh)Photo by Mark Fershteyn (@markfersh)
Everything you've been told about AI data centers is wrong. The media and politicians can't stop demonizing them: - THEY'RE DESTROYING OUR WATER - THEY'RE DRAINING OUR ENERGY GRID - THEY'RE RAISING YOUR POWER BILL But what if the whole panic was manufactured? In this video I break down the 5 myths you're being fed, and who actually benefits from you believing them. Watch it, then tell me: are data centers a threat or a scapegoat?
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We will see this play out for every type of employee If you aren't AI native you will be un-hirable in a few years. Do with that what you may.
The gap between an average engineer and the best engineers was never quite 10x, but it was meaningful. AI has made the gap at least 100x.
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But…every product is nearly unusable?
Some things I learned working at Microsoft: 1/ large numbers everywhere. $100M ARR service isn't even a footnote on executive slide decks. Leadership time is too valuable, come back when you're $1B+. Msft ecosystem is so rich that $1B+ sales are common (it's ludicrous how much work goes into closing these). Azure has ~250 services, some are a few mil and stagnant, others in hypergrowth, some are cash cows, you see every quadrant of the growth-share matrix. Imagine the imperial navy with ships of vastly different sizes as far the eye can see 2/ more on immense scale-- the smallest of Azure services run on 10K+ VMs. Large services run on 1M+ (some maybe 10M+ VMs, idk). Msft is stamping one new datacenter into the ground every four days (!!!!), a bewildering rate. Demand is so high, even with all this buildout we're forever capacity constrained. Azure brings in $100B in revenue and is growing 40%+ annually (at this size!!) There are ~225K msft employees. You almost have to think in scientific notation, 10^4 is a tiny number here 3/ msft is totalitarian re serving the customer. It's counterintuitive to outsiders, but the warts in msft products fall out of this culture. For example, it would be easy to improve the Azure Portal. But in all my time working with customers and partners here, I haven't heard even one person complain about the portal UI. Msft invests $0.00 dollars in anything that doesn't serve the customer and is completely unapologetic about downstream implications of this mindset 4/ msft can reshape itself overnight (when it has the will). People argued whether we waited too long to adapt after Storm-0558/Midnight Blizzard hacks (with the benefit of hindsight, we definitely did). But once the leadership team privileged security, everyone's job changed in two weeks. LT tied every engineer's comp to security, centralized reporting of embedded security teams, every org reshuffled its roadmap. Within days everyone was pushing PRs with security fixes. I would have thought it inconceivable to mobilize 200K+ employees this fast 5/ Azure is complicated. Postgres depends on compute, networking, AKS (or EKS for you aws people), secrets, etc. AKS depends on compute, networking, some datastore (probably Cosmos but idk), a dozen other things. Cosmos depends on... you get the idea. When anything breaks, everything above can break too. Some construction crew accidentally cuts a fiber cable in Brazil South, or a dedicated hardware compression chip browns out in storage, or compute failure rate in west eu spikes for some reason, or a million other failure modes. Msft is relentless about improving this, idk exactly but fully loaded probably 50% of engineer time goes into resilience 6/ re lifers who work 20+ years here, SV sneers at this but I now see it differently. I was once on the bridge debugging some IO issue, we call storage, the guy diagnoses it in about a minute, we chitchat, turns out he built NT asyncio support. Or same story but with networking, the guy built NT tcp/ip stack. I used to have a boss here, we were bumping into some problem, she casually goes oh yeah, we hit that when I was working on .NET bytecode. The ex-DEC VAX/VMS database engineers built SQL Server, some are still here. I love bumping into these people 7/ I never *really* understood distribution until I got here. As an example, our team had a customer in Seoul w/ a deep performance problem. We had to fix it to unlock one of these giant contracts. We don't speak Korean, they don't speak English. Of course msft has specialists in Seoul who get to the customer site before you could even get on a plane. There is an office in every major city, a relationship with every major entity, legal experts in every jurisdiction. You can reach these ppl instantly. Claude tells me msft has ~180 offices in ~100 countries (!!) U.S. government has ~270 consulates in ~170 countries. So msft outposts aren't quite as vast as U.S. diplomatic network, but pretty vast 8/ in the 90s everyone was afraid of msft. The lore is that BillG was ruthless. He'd clone you, beat you via ecosystem/distribution strength, and moreover make the ecosystem stronger with the new product. I wasn't there to compare, but msft of today is ruthless about winning, has the will to adapt, and has the wherewithal to undertake colossal projects. Ppl see Teams bugs or whatever and completely misread the signals. Teams is less polished than Slack because msft doesn't care one iota about polish. It cares about winning, and is frighteningly good at it. Underestimate at your own risk
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In what world is a gay vegan winning Texas? This is going to be a blowout of epic proportions
I’m going to try to make the Texas math as simple as I can for everyone. Be sure to READ. If the county is in red, I expect Paxton to win it by more votes than Cruz did in 2018, or lose it by fewer. If it is in blue, my pessimistic forecast has Talarico winning it by more votes than O’Rourke in 2018, or losing it by fewer. I expect Paxton to end up better off in 235 counties, having his largest margin expansions in El Paso, Hidalgo, Montgomery, Parker, and Comal Counties, with 18 counties putting him up between 3,000 and 10,000 additional margin, and 34 more between 1,000 and 3,000. The total margin expansions in my pessimistic model for the red-shaded counties comes out to +292,179 additional margin, with turnout numbers blunted and margins lowered either by 5% from 2024 presidential, or lowered to 2020 presidential in the case of counties like El Paso and those in the Rio Grande Valley. Cruz’s 2018 margin of 214,921 + 292,179 new margin out of 235 counties comes out to Paxton up by +507,100 before we begin assessing the 19 counties I expect Talarico to progress in by raw vote margin over 2018 Senate. In order to get the race to dead even, Talarico will need to win these counties by this much MORE than O’Rourke did: Harris +109k Travis +88k Dallas +67k Bexar +65k Williamson +19k Hays +16k Tarrant +40k Lose by less or flip Denton +10k Collin +27k Brazoria +8k Kaufman, Bell, Ellis, Lubbock, Brazos, Bastrop, Caldwell, Brewster +15k together And then scrape up another +43k margin throughout the state to TIE. Approximate Margin for Talarico required in the blues Harris 61-39 Travis 77-23 Dallas 69-31 Bexar 62-38 Tarrant 53-47 Fort Bend 59-41 Williamson 54-46 Yes, there is a pathway to win. It requires this scenario: Turnout between 2018/2022 thresholds for GOP Turnout at same rate as 2018 Beto boom in the blue-shaded counties. -5% or more Trump margin for Paxton + regression to 2020 presidential in El Paso/Rio Grande Valley +5% or more Talarico margin over 2018 senate in blue-shaded counties. If you’re tired of being gaslit by polls suggesting a +600,000 margin is possible, then there are other ways of doing election math. The opportunity is there. It requires a lot to go right for Talarico.
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I was very, very wrong.
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How did nobody look at this and say it’s terrible? How did no players testing this tell them that in month 6? Truly mind blowing incompetence.
It looks like total cringe made by Tumblr flaggots but you REALLY can see the budget in this though. That is genuinely high end, expensive animation and it shows Hermen Hulst believed in this project so, SO much. They never even conceived of the possibility that this could fail.
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Most businesses don’t employ open source software. They want support and reliability. Just build something you’re passionate about. Then market the shit out of it.
i want to start building saas products, but almost every idea i come up with already has a solid open-source alternative. even when i see things i could improve or add, it feels like i'm just building another clone with a few extra features. how do indie hackers find something worth charging for without reinventing the wheel? would love to hear some advice from people who've been through this.
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24 months? What're they going to do with 24 weeks? It's going to be a busy 24 days.
This is INSANE. Cisco’s president Jeetu Patel has given a 27-year-old engineer unlimited AI tokens to try to rewrite 98% of the company’s legacy code within 24 months, Fortune reports. Padmanabhan Krishnamurthy thinks he can do it with a two-person team. He has just four weeks to prove the approach.
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Something is seriously wrong at Apple Followed every rule to the T Got rejected for “spam” today Months of work… WTF…
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I agree in general, but digital sales rooms on average 2x’ed close rates for enterprise sellers that implemented that properly Saw this across hundreds of thousands of deals Tailored story + content + action plan = 35% close rates without fail
in sales, i refuse to send one-pagers, presentation slides, loom videos, or other scaled collateral three bullets crafted for them OR we’re in product together showing off the magic to whom needs to see it with a highly contextualized storyline anything else, is too far removed from their world-view yes, this is in enterprise sales
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Sales and dating is very simple You have to genuinely believe, through tricking yourself or fact, that you don’t need them and that you’re doing them a favor. Without being a dick about it. The outcome doesn’t matter because you’ll be fine with or without them. They on the other hand…
The whole “game” of sales is becoming a peer to your prospects. You must give off those status symbols or they put you into sales guy bucket and know you are just chasing them. You have the first discovery call to navigate this before you get cooked.
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Project management worked when tasks took days-months Today you need Vision Management - What is the long term product vision? - what delivers the best user experience? - what are the non-negotiables? Everything else can be quickly integrated or thrown out
Sadly canceling our linear subscription as we just don’t use it anymore Planning happens in a Slack canvas with very high level goals and constraints Features gets shipped in a few hours, or days max Roadmaps don’t get further than a month
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Allow us to create a context library specific to different projects (businesses, etc) so we can easily reference and point the bot to be better. Allow us to add x, links, files, etc into these projects without limits. A mini RAG essentially. “Use the @copywriting project to draft new pages in collaboration with @marketingbot” 🥹
Help us improve Grok Bot and I'll send you $100! Reply on this thread with your best bug report or feature suggestion. I'll pick 5 replies and send you $100 through X Money tomorrow.
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These studios used to be legendary. Then they ballooned in size and hired people who don't play, and hate, typical games and gamers. So they released dog shit products that nobody wants. Make Games Great Again
I don't understand how it's possible to concurrently have AI make game development easier than ever and have all these legendary studios shutting down or taking until 2030 to ship a game. Are game studios just not using this tech at all? Sad day as a gamer.
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Building multiplayer games today can cost over $100m... Opus 5.5 built it for less than $200. This is for all the Battlerite, New World, and Supervive fans. Imagine intense ~10 minute 5v5 battles. No 25 minute laning phases, or grinding PvE quests to gear up. Just pure action. Coming to Steam, Mobile, and Console ASAP.
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Because 1) using AI is a skill and 2) they're using pre-generated assets: 1. This is one of the biggest oversights of the anti-AI hate squad...they think anyone can just prompt AI and get an incredible result. Being able to master AI is a skill that takes a lot of hours to master. I'm ~1500 hours in at this point with 500+ being in ai game dev. 2. They're not letting AI generate the assets in most cases, and relying on store bought (unity, unreal, godot, itch, etc) to bring instant cohesion. Amazing work = deep skills and knowledge + great AI mastery
how come all my attempts to do stuff like this look like a special needs kid puked macaroni art into a litter box?
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This is genuinely insane.. Opus 5.5 is helping me create my dream console MOBA from scratch. Already full multiplayer, 18 heroes, 15 game modes (5v5, team deathmatch, battle royale, arenas, and more)
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This is all played on a controller btw
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Opus 5.5 + Claude Design is fantastic for prototyping menus, designs, and mockups
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Try the new Tesla thrusters today Made with Dreambit.app
Real life, baby
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Nobody serious is going to cancel their purchase because a shittier version is available on Roblox. That’s for children (and predators, from what I hear). Most importantly - your copy cats creating clones won’t have the attention to detail and game design that you would. The only moat left is giving a shit.
Indie dev’s video goes viral, generates a couple of million views overnight By morning there’s a Roblox clone of it 2026 gamedev is interesting
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