The entrepreneurs who made "impossible" their business model
March 10, 2026
by Dayna Winter
He sold 10,000 books while losing his sight. She built a Target-stocked brand around period stigma. Both learned that resistance isn't a bug—it's the feature.
There's often a moment in a founder’s journey when resistance stops being a barrier and starts feeling like a compass.
For Paul Castle, it came at 16 when a doctor delivered a blow: he was going blind due to a rare genetic condition. For Nadya Okamoto, it arrived every time someone told her she was too young to run a nonprofit or her mission too taboo for the mainstream.
Paul has now sold over 10,000 copies of his self-published children's books and Nadya's brand August sells in Target and Sprouts stores across the US. What should have stopped them powered everything they built.
When “no” becomes the North Star
Nadya Okamoto is no stranger to friction. She's pushed back against systems and people who doubted her at every step of her career. In fact, it became her superpower.
The period activist co-founded a nonprofit at 16, launched her brand August while at Harvard, wrote a book, and built a massive social following—all before most of her peers finished college.
Getting people to care about her mission was one thing (here, her age was an asset). Getting them to fund the work was another. "When you run a nonprofit, your job is fundraising,” she says. “But then you're raising a million plus dollars on a bank account that you're not old enough to sign for.”
Aside from fighting to be taken seriously by the financial system, Nadya had another battle to wage: her cause, at the time, still carried stigma. Even saying the word period was taboo. “Now I'm very shameless about it,” she says, “and it became like a badge of honor.” Her tactics are radical, often dividing the court of public opinion. Every time she talked about period blood online, the naysayers would swoop in.
It would be enough to seed doubt in any young activist. For Nadya, it was the fuel to her fire. “If you're not getting pushback, you're not actually doing any activism because you're just advocating for the status quo,” she says. "When I get hate for what I post online, it’s actually motivating because it's just proof that we still have so much work to do."
When Nadya launched August in 2021, the criticism took on a new form. Her progressive peers in her native Portland, Oregon couldn't understand why an anti-capitalist activist would raise VC money and start a for-profit business.
Nadya saw it differently—the period industry had sold a “hide your period, forget you have a period” narrative for decades. The lack of open conversation left a massive gap in a space ripe for innovation. August would bring products and conversation to people who'd never had an open dialogue about periods before.
Throughout her career, Nadya turned resistance into a roadmap. Every “no” told her exactly where to go next.
Barriers breed breakthroughs
Another entrepreneur was learning the same lesson. His barrier wasn't age or stigma. It was losing his vision.
Paul Castle wrote and illustrated his first book when he was only a child, ripping the pages from his brother’s G.I. Joe hardcover, and replacing them with his own. Even then, he dreamed of a future career in visual arts.
Then, at 16, he was diagnosed with retinitis pigmentosa, a rare genetic condition that would steal his sight permanently. “My parents were devastated. They thought my future was potentially over,” Paul says. "But at that moment, I remember feeling a strange relief because I was like, ‘This explains everything. I'm not just clumsy. Something isn't wrong with me.’”
Paul decided early on to pursue everything he wanted anyway. For years, he made a living creating oversized commissioned canvas work and booking gallery shows. But as his vision loss progressed, the format became too difficult. “I couldn't get enough light on my canvas. It was so frustrating for me,” he says.
Then he was given an iPad as a birthday gift and it changed everything. Paul could brighten the canvas, zoom in and out, control the light. “It turned out to be the solution,” he says. “I was like, I can still do this.”
In 2020, COVID hit. Paul and violinist husband Matthew Castle launched a podcast during the shutdown and created dedicated accounts on YouTube and Instagram to promote it. The podcast failed to take off. But the social media accounts exploded. Sharing snippets of their lives as an inter-abled couple, they built a following of millions.
Meanwhile, Paul returned to his illustration roots, starting with whimsical penguin characters to adorn the couple’s wedding invitations. When he shared the characters with his massive audience, the response was immediate—people wanted to buy them. The illustrations eventually helped pay for part of the wedding. But Matthew saw bigger potential: “Paul, this is the perfect time to illustrate a book.”
One book became several. They sold thousands of copies independently. And their robust social following became their distribution channel. No middlemen, no gatekeepers, just direct connection to their fans.
What could have ended Paul's career became his creative breakthrough. His progressive vision loss shapes how he sees the world and that perspective sets his art apart.
When platforms stop being obstacles
For entrepreneurs already fighting resistance on every front, technology shouldn't become another obstacle.
Matthew manages the business side of Paul’s operation, earning him the nickname “Mr. Spreadsheets.” The couple started selling Paul’s books on Etsy but eventually switched platforms. "We moved to Shopify because it offered so much customization," he says. While Paul creates, Matthew tinkers with Sidekick, Shop App, and other tools to grow the business.
When three major publishing houses came calling, the couple turned them all down. “We don't need them,” Matthew told Paul at the time. “Why are we going to give them 97% of the profits when we're clearly doing fine?”
But the stakes are bigger than money. “People don’t need to go traditional anymore,” says Paul. “We live in a time where you really get to do it yourself. It gives artists so much agency.” Shopify gave Matthew and Paul the infrastructure to sell directly to their audience and keep creative control. This particular perk means Paul can retain ownership of his IP ahead of the next big dream: starting an animation studio.
That same flexibility scales across larger businesses like Nadya’s. Jake Tackett, August’s VP of operations, says speed mattered most in the early days. “We were able to get up and running quickly without heavy technical lift, which allowed us to focus on product, brand, and customer experience,” he says.
As August grew from a Harvard dorm room to shelves at Target and Sprouts stores across the US, the platform grew with it. “The breadth and accessibility of the app ecosystem” became critical, says Jake. “Instead of long implementation cycles, we can install tools in minutes and test solutions quickly.”
The right tools became invisible. Paul and Matthew could pour energy into art and audience. Nadya and her team could focus on changing the conversation around periods. For their businesses, the infrastructure just worked—leaving room for the resistance that drives real change.
The only rule: write your own
The traditional gatekeepers—publishing houses, institutional investors, established industries, social media audiences—operate on a set of assumptions about who gets to succeed and how. Paul and Nadya succeeded precisely because they rejected those assumptions.
The businesses they built prove that the "impossible" dreams are the ones worth building. You just have to write your own rules.