“Why now?” — Sequoia’s favorite question, answered for 2026

Somewhere around slide three of Sequoia’s famous pitch template sits a question that is exactly two words long: why now?

It’s the question investors weight most heavily, and the one founders fumble most often. Notice it isn’t “why is this a good idea?” It’s “why is this a good idea today?” What changed — in technology, in cost, in behavior — that makes this thing possible or necessary in a way it wasn’t three years ago? Great companies tend to have a crisp answer. Vague ones (“AI is huge”) get you politely shown the door.

We’re a small product with strong opinions, so it’s only fair to hold ourselves to the same standard. This post is our answer — and, more usefully, an argument about what just changed for anyone sitting on an idea.

Code stopped being the hard part

For most of software history, ideas were cheap and builds were expensive. You needed a technical co-founder, or savings, or both. An MVP was a three-to-six month commitment you made before you learned anything about whether people wanted it. That cost structure quietly shaped everything: who got to be a founder, how many ideas ever got tried, how careful you had to be about picking one.

Then it broke, fast. In early 2025 Andrej Karpathy gave a name — vibe coding — to something people were already doing: describing what you want in plain English and letting a model write the code. Weeks later, Y Combinator said a quarter of its winter batch had codebases that were roughly 95% AI-generated. These weren’t non-technical founders forced into it — they were engineers who could have written every line by hand and decided it wasn’t the best use of a week. By now, depending on whose count you trust, somewhere around half of new code being committed is AI-written or AI-assisted.

The weekend MVP is real. Not a mockup, not a Figma file — a working product, built by one person with a chat window and a $20 subscription.

So now everyone is building

Cheap inputs create crowded outputs. The share of new founders building AI products roughly tripled in two years. Solo founders — people who would have spent 2021 hunting for a technical co-founder — are launching alone in record numbers. Whatever the precise multiple is versus a few years ago — 5x, 10x — you can feel it without a spreadsheet: open X on any given morning and three people have shipped something before breakfast.

Here’s the uncomfortable consequence. When everyone can build, building isn’t an edge. “I shipped it” used to be a filter that separated the serious from the dreamers. Now it’s table stakes. The scarce thing is no longer the ability to ship — it’s knowing what’s worth shipping.

The expensive mistake changed

CB Insights has been running startup post-mortems for over a decade, and the number-one cause of death has never moved: no market need. People build things nobody wants. That was true when building took a year, and it’s somehow more dangerous now that building takes a weekend — because the cost of the wrong product stopped being money and became the one thing you can’t refinance: months of your attention.

Cheap code makes wrong products cheaper to build and exactly as expensive to pursue. You’ll still spend half a year marketing it, polishing it, telling yourself the traffic is about to turn up. The build was never the trap. The commitment is.

The part most people miss: validation got cheap at the same moment

The same models that collapsed the cost of building also collapsed the cost of testing. The full validation loop — positioning, copy, a landing page, a waitlist form, analytics — used to be a week of work stitched across four different tools. Which is precisely why almost nobody did it before building. The honest-work order was backwards because the economics were backwards.

That’s our why now, in one sentence: the technology that flooded the world with new products also made it nearly free to find out whether yours should exist. The flood and the filter arrived together. Most people only noticed the flood.

ValidateItnow is our attempt at the filter. Describe your idea in a sentence or two. Get a viability score that looks at market size, demand, competition, and risk — an honest reality check, not a cheerleader. Get a live landing page with a built-in waitlist, share the link, and watch real strangers vote with their email addresses. All before you build anything.

“Why now” for your idea, specifically

Timing windows used to be measured in years. Today, if you can think of an idea, someone else is probably prompting a version of it into existence this week. That sounds discouraging. It’s actually the opposite — it just moves the finish line. Since being first to build is close to impossible now, the edge belongs to whoever is first to learn: first to know which framing of the idea makes people reach for their email address, first to have two hundred humans waiting for it on launch day.

A waitlist of real people is the one asset the model can’t generate for your competitor.

So if you’ve been sitting on an idea — the one you keep re-explaining to friends, the one you open a notes app for at midnight — the answer to “why now?” is blunt: because finding out just got nearly free, and not knowing still costs six months of your life. Sequoia asks the question at the pitch stage. You get to answer it this weekend.