Doug Katz
@dkwp93g3h2.bsky.social
The “adaptive market” isn’t niche.
150M+ Americans live with upper extremity limitations — and that’s before you count aging or temporary injury.
Ability is a curve.
Design for the full curve, and your market multiplies.
🎙️ Link below - youtu.be/BDplvkyDPlE?...
Use code - GIM-NULU to support Amy
150M+ Americans live with upper extremity limitations — and that’s before you count aging or temporary injury.
Ability is a curve.
Design for the full curve, and your market multiplies.
🎙️ Link below - youtu.be/BDplvkyDPlE?...
Use code - GIM-NULU to support Amy
February 11, 2026 at 10:05 PM
The “adaptive market” isn’t niche.
150M+ Americans live with upper extremity limitations — and that’s before you count aging or temporary injury.
Ability is a curve.
Design for the full curve, and your market multiplies.
🎙️ Link below - youtu.be/BDplvkyDPlE?...
Use code - GIM-NULU to support Amy
150M+ Americans live with upper extremity limitations — and that’s before you count aging or temporary injury.
Ability is a curve.
Design for the full curve, and your market multiplies.
🎙️ Link below - youtu.be/BDplvkyDPlE?...
Use code - GIM-NULU to support Amy
For scale, if donald j trump was written 1,000,000 times it would stretch ~21 miles.
The N.U.T.S. Stack (@thenutsstack)
For scale
substack.com
February 11, 2026 at 2:15 AM
For scale, if donald j trump was written 1,000,000 times it would stretch ~21 miles.
Adaptive products don’t fail because people don’t want them.
They fail because discovery, trust, and responsibility are fragmented.
Same problem. Same solution.
Different perspectives. No shared system.
dougkatz8.wixsite.com/douglasmkatz...
#disability #adaptive #assistive #universaldesign
They fail because discovery, trust, and responsibility are fragmented.
Same problem. Same solution.
Different perspectives. No shared system.
dougkatz8.wixsite.com/douglasmkatz...
#disability #adaptive #assistive #universaldesign
The Hardest Part of Building in the Adaptive Space Isn’t the Product
When I first got into the adaptive space, I figured the hardest part would be design. Adaptive products, after all, carry real responsibility. They have to work for people who don’t have the luxury of...
dougkatz8.wixsite.com
February 10, 2026 at 4:53 PM
Adaptive products don’t fail because people don’t want them.
They fail because discovery, trust, and responsibility are fragmented.
Same problem. Same solution.
Different perspectives. No shared system.
dougkatz8.wixsite.com/douglasmkatz...
#disability #adaptive #assistive #universaldesign
They fail because discovery, trust, and responsibility are fragmented.
Same problem. Same solution.
Different perspectives. No shared system.
dougkatz8.wixsite.com/douglasmkatz...
#disability #adaptive #assistive #universaldesign
Autumn, c. 1796
George and Martha Washington, Mount Vernon.
Discussing the future of the nation.
Or the weather.
History is unclear.
Either way,
it was a good afternoon for a table, a drink,
and a little Golfresco.
Available now at www.golfresco.com
MADE IN THE USE - DISABLED VETERAN OWNED
George and Martha Washington, Mount Vernon.
Discussing the future of the nation.
Or the weather.
History is unclear.
Either way,
it was a good afternoon for a table, a drink,
and a little Golfresco.
Available now at www.golfresco.com
MADE IN THE USE - DISABLED VETERAN OWNED
February 9, 2026 at 4:22 PM
Autumn, c. 1796
George and Martha Washington, Mount Vernon.
Discussing the future of the nation.
Or the weather.
History is unclear.
Either way,
it was a good afternoon for a table, a drink,
and a little Golfresco.
Available now at www.golfresco.com
MADE IN THE USE - DISABLED VETERAN OWNED
George and Martha Washington, Mount Vernon.
Discussing the future of the nation.
Or the weather.
History is unclear.
Either way,
it was a good afternoon for a table, a drink,
and a little Golfresco.
Available now at www.golfresco.com
MADE IN THE USE - DISABLED VETERAN OWNED
NULU-ed some crab dip for the big game.
Too late for this season, but make sure you're ready for March Madness by getting your NULU today.
At our www.NULUknives.com or on Amazon.
#adaptive #assistivetechnology #superbowlfood #universaldesign #chefsknife #kitchenknife
Too late for this season, but make sure you're ready for March Madness by getting your NULU today.
At our www.NULUknives.com or on Amazon.
#adaptive #assistivetechnology #superbowlfood #universaldesign #chefsknife #kitchenknife
February 8, 2026 at 10:23 PM
NULU-ed some crab dip for the big game.
Too late for this season, but make sure you're ready for March Madness by getting your NULU today.
At our www.NULUknives.com or on Amazon.
#adaptive #assistivetechnology #superbowlfood #universaldesign #chefsknife #kitchenknife
Too late for this season, but make sure you're ready for March Madness by getting your NULU today.
At our www.NULUknives.com or on Amazon.
#adaptive #assistivetechnology #superbowlfood #universaldesign #chefsknife #kitchenknife
The Mirror We've Been Avoiding
How looking at erectile dysfunction advertising is one of the clearest records we have of how cultural permission works.
Content warning for Epstein discussion, but this isn't entirely about him—it's about us.
How looking at erectile dysfunction advertising is one of the clearest records we have of how cultural permission works.
Content warning for Epstein discussion, but this isn't entirely about him—it's about us.
The Mirror We've Been Avoiding
The Cultural Permission Structure We Refuse to See or Discuss
open.substack.com
February 8, 2026 at 3:53 PM
The Mirror We've Been Avoiding
How looking at erectile dysfunction advertising is one of the clearest records we have of how cultural permission works.
Content warning for Epstein discussion, but this isn't entirely about him—it's about us.
How looking at erectile dysfunction advertising is one of the clearest records we have of how cultural permission works.
Content warning for Epstein discussion, but this isn't entirely about him—it's about us.
The Imagination Deficit
The shape of what’s coming if we ignore our daydreams and nighmares.
The shape of what’s coming if we ignore our daydreams and nighmares.
The Imagination Deficit
The shape of what’s coming if we ignore our daydreams and nighmares.
open.substack.com
February 8, 2026 at 1:46 PM
The Imagination Deficit
The shape of what’s coming if we ignore our daydreams and nighmares.
The shape of what’s coming if we ignore our daydreams and nighmares.
This needs to be a post-maga permanent exhibit.
The N.U.T.S. Stack (@thenutsstack)
This needs to be a post-maga permanent exhibit.
substack.com
February 7, 2026 at 2:15 PM
This needs to be a post-maga permanent exhibit.
Seems fitting for a serial dickhead.
The N.U.T.S. Stack (@thenutsstack)
Seems fitting for a serial dickhead.
substack.com
February 7, 2026 at 1:22 PM
Seems fitting for a serial dickhead.
This is all that I can think today.
The N.U.T.S. Stack (@thenutsstack)
This is all I can think today.
substack.com
February 6, 2026 at 11:13 PM
This is all that I can think today.
One thing I keep coming back to: the over-50 market isn’t a liability — it’s an untapped advantage.
Like my message?
I am available for speaking and podcast guest engagements.
www.douglasmkatz.com
#over50 #seniors #adaptive #assistive #universaldesign #entrepreneur
Like my message?
I am available for speaking and podcast guest engagements.
www.douglasmkatz.com
#over50 #seniors #adaptive #assistive #universaldesign #entrepreneur
February 5, 2026 at 6:05 PM
One thing I keep coming back to: the over-50 market isn’t a liability — it’s an untapped advantage.
Like my message?
I am available for speaking and podcast guest engagements.
www.douglasmkatz.com
#over50 #seniors #adaptive #assistive #universaldesign #entrepreneur
Like my message?
I am available for speaking and podcast guest engagements.
www.douglasmkatz.com
#over50 #seniors #adaptive #assistive #universaldesign #entrepreneur
He does live his life Biblically.
He is just on the wrong side.
He is just on the wrong side.
The N.U.T.S. Stack (@thenutsstack)
He does live his life Biblically.
He is just on the wrong side.
substack.com
February 5, 2026 at 1:16 AM
He does live his life Biblically.
He is just on the wrong side.
He is just on the wrong side.
Johnny Cash would have hated trump and maga.
The N.U.T.S. Stack (@thenutsstack)
THE MAN IN BLACK - Johnny Cash
Well, you wonder why
I always dress in black
Why you never see
Bright colors on my back
And why does my appearance
Seem to have a somber tone?
Well, there's a rea...
substack.com
February 5, 2026 at 1:00 AM
Johnny Cash would have hated trump and maga.
“Yes! … If I have to create stories so that the American media actually pays attention to the suffering of the American people, then that’s what I’m going to do.”
JD Vance during the 2024 campaign while referring to the Haitians that they are now retargeting.
JD Vance during the 2024 campaign while referring to the Haitians that they are now retargeting.
The N.U.T.S. Stack (@thenutsstack)
As TPS status gets dropped for Haitians in Ohio and the scapegoating of a culture happens again, remember what vance said when pushed about the abject lies during the campaign.
“Yes! … If I have to c...
substack.com
February 3, 2026 at 12:44 PM
“Yes! … If I have to create stories so that the American media actually pays attention to the suffering of the American people, then that’s what I’m going to do.”
JD Vance during the 2024 campaign while referring to the Haitians that they are now retargeting.
JD Vance during the 2024 campaign while referring to the Haitians that they are now retargeting.
Big game.
Good food.
Better company.
That’s the whole playbook.
www.golfresco.com
MADE IN THE USA - DISABLED VETERAN-OWNED BUSINESS
#golfcarts #utv #golfcartaccessories #utvaccessories #golfcartlife #utvlife #veteranowned #disabledveteranowned #MadeInUSA
Good food.
Better company.
That’s the whole playbook.
www.golfresco.com
MADE IN THE USA - DISABLED VETERAN-OWNED BUSINESS
#golfcarts #utv #golfcartaccessories #utvaccessories #golfcartlife #utvlife #veteranowned #disabledveteranowned #MadeInUSA
February 2, 2026 at 11:31 PM
Big game.
Good food.
Better company.
That’s the whole playbook.
www.golfresco.com
MADE IN THE USA - DISABLED VETERAN-OWNED BUSINESS
#golfcarts #utv #golfcartaccessories #utvaccessories #golfcartlife #utvlife #veteranowned #disabledveteranowned #MadeInUSA
Good food.
Better company.
That’s the whole playbook.
www.golfresco.com
MADE IN THE USA - DISABLED VETERAN-OWNED BUSINESS
#golfcarts #utv #golfcartaccessories #utvaccessories #golfcartlife #utvlife #veteranowned #disabledveteranowned #MadeInUSA
A patent isn’t a magic force field. Never was.
It’s expensive, imperfect, and not enough on its own to bring a product to market.
The bigger issue?
The current IP system scares investors and quietly kills small inventors.
Innovation dies long before launch.
People need to get smarter about that.
It’s expensive, imperfect, and not enough on its own to bring a product to market.
The bigger issue?
The current IP system scares investors and quietly kills small inventors.
Innovation dies long before launch.
People need to get smarter about that.
IP Myth
YouTube video by Doug Katz - Inventor of NULU and Golfresco
youtu.be
February 2, 2026 at 6:47 PM
A patent isn’t a magic force field. Never was.
It’s expensive, imperfect, and not enough on its own to bring a product to market.
The bigger issue?
The current IP system scares investors and quietly kills small inventors.
Innovation dies long before launch.
People need to get smarter about that.
It’s expensive, imperfect, and not enough on its own to bring a product to market.
The bigger issue?
The current IP system scares investors and quietly kills small inventors.
Innovation dies long before launch.
People need to get smarter about that.
In a World of Slugworths, Be a Wonka
open.substack.com/pub/nutsstac...
open.substack.com/pub/nutsstac...
In a World of Slugworths, Be a Wonka
Entrepreneurial Lessons from Willy Wonka and the Chocolate Factory or making good for a wary world.
open.substack.com
January 30, 2026 at 9:08 PM
In a World of Slugworths, Be a Wonka
open.substack.com/pub/nutsstac...
open.substack.com/pub/nutsstac...
I posted about these in the past and make them available at cost.
The N.U.T.S. Stack (@thenutsstack)
I posted about these in the past and make them available at cost.
https://nuts-merch.printful.me/product/yard-sign
substack.com
January 29, 2026 at 6:59 PM
I posted about these in the past and make them available at cost.
This is not just hypocrisy—it's proof that the moral authority so many people claimed to have on the Second Amendment was always bullshit. And if that foundation is bullshit, then so are the people who built their identity on it.
The Day the Gun Rights Zealots Forgot How Guns Work"
How the reality of firearm use-case, capabilities and ballistics crush the bullship hypocrisy of the radical right.
open.substack.com
January 29, 2026 at 2:52 PM
This is not just hypocrisy—it's proof that the moral authority so many people claimed to have on the Second Amendment was always bullshit. And if that foundation is bullshit, then so are the people who built their identity on it.
I exercise my 2nd Amendment rights partly because of this radical right segment of our population and the fact that my existence and freedom is the source of their grievance.
substack.com/@thenutsstac...
substack.com/@thenutsstac...
The N.U.T.S. Stack (@thenutsstack)
I am a veteran and concealed carry permit holder.
I am more concerned by the person openly sporting an AR-15 at an event that they drive to in their vehicle papered wth decals virtue signaling thei...
substack.com
January 28, 2026 at 1:34 PM
I exercise my 2nd Amendment rights partly because of this radical right segment of our population and the fact that my existence and freedom is the source of their grievance.
substack.com/@thenutsstac...
substack.com/@thenutsstac...
Even Amazon, the largest retail platform out there, does not have a category for adaptive products.
This is a reflection of how we still view adaptive products.
I speak on adaptive designand ability as a spectrum.
Speaking engagements, panels, and conversations.
www.douglasmkatz.com
This is a reflection of how we still view adaptive products.
I speak on adaptive designand ability as a spectrum.
Speaking engagements, panels, and conversations.
www.douglasmkatz.com
January 27, 2026 at 7:50 PM
Even Amazon, the largest retail platform out there, does not have a category for adaptive products.
This is a reflection of how we still view adaptive products.
I speak on adaptive designand ability as a spectrum.
Speaking engagements, panels, and conversations.
www.douglasmkatz.com
This is a reflection of how we still view adaptive products.
I speak on adaptive designand ability as a spectrum.
Speaking engagements, panels, and conversations.
www.douglasmkatz.com