Who is Medhansh Seth?

I’m Medhansh Seth – a 18-year-old student-entrepreneur and now an author, 4-time Rubik’s Cube state champion with 150+ podiums, and founder of AceCubing, where I’ve taught 600+ kids across India and abroad how to solve the cube and think in systems. I’ve been part of a Guinness World Record event, been featured on The Hindu and News18, and spent the last few years juggling exams, clients, competitions, a Shopify store, and now…a book.

Growing up around business

My “business education” didn’t start with a textbook. It started in the backseat of cars and in the corners of conference rooms.

I grew up tagging along with my dad to meetings, trade fairs, and factory visits. I watched him build a company from scratch – the long drives, the pressure, the small wins, the months when nothing seemed to move. Those trips made one thing very clear: entrepreneurship is not the glossy, 60-second reel version we see online. It’s exciting, yes, but it’s also confusing, political, tiring, and deeply personal.

By the time I was old enough to start my own thing, I already knew I didn’t want the “Instagram founder” life. I wanted to actually understand what I was signing up for.

What I care about

There are a few principles that shaped every chapter:

• Clarity over hype
  If a 16-year-old can’t understand it, the explanation isn’t good enough. I’d rather be clear than sound “smart.”

• India-first reality
  Most of the stories and examples are from Indian founders, Indian markets, and Indian money – not copy-pasted from Silicon Valley slides.

• Building before preaching
  I’m not here to tell you what you must do. I’m here to show you what I’ve seen, what others have lived through, and the trade-offs hidden behind the buzzwords.

• Respecting young founders
  Teenagers and students deserve the full picture about money, control, and regret – not just feel-good motivation posts.

From cubes to companies

AceCubing started as a simple idea: take something I was world-class at – the Rubik’s Cube – and use it to teach kids discipline, focus, and pattern-thinking.

What began with a few students turned into workshops, online batches, mosaics, events, and 600+ students. I learned how to send invoices, handle parents, fix a broken website, run ads that sometimes totally fail, and build a tiny brand that people actually remember.

Speedcubing sounds like a random niche, but it taught me almost everything about startups: repetition, feedback loops, small optimisations, data, and how to keep going when you’re stuck on the same problem for hours.