When Airwallex announced its $US300 million Series F round last month, valuing the payments company at $US6.2 billion, Blackbird partner Michael Tolo made an unusually candid admission.

"We absolutely made a mistake not investing earlier," he said. "And it's the most expensive one that we have made at Blackbird."

His reflection reveals a systemic shift affecting all investors. When billion-dollar growth funds find themselves paying premium valuations for late-stage deals, it demonstrates how the traditional playbook - wait for proven success, then invest - now captures only the tail end of value creation.

The maths of early-stage value creation

Consider Airwallex's journey from different investor perspectives:

• Pre-seed investors (hypothetical $5 million valuation): 1,240x returns
• Seed investors (hypothetical $20 million valuation): 310x returns
• Series A investors (hypothetical $100 million valuation): 62x returns
• Series F investors (current $6.2 billion valuation): Hoping for 2-3x after IPO

Even if Blackbird doubles their money from the Series F, they're capturing perhaps 0.2% of the value that pre-seed investors secured.

Compare this to Canva, where Blackbird invested $250,000 in the company's $3 million seed round in 2013 and participated in its entire value creation journey to a $50 billion private valuation.

Why traditional portfolios miss the wealth creation window

Individual sophisticated investors face the same structural challenge:

• Too early to evaluate: Most can't assess pre-revenue companies with confidence
• Too late to access: By the time potential becomes obvious, they're competing with institutional money at mature valuations

According to PitchBook data, companies now stay private 2.5 times longer than they did in the 1990s. This means the rapid growth phase – where a $5 million company becomes a $5 billion company – happens entirely in private markets.

Traditional portfolios, regardless of sophistication, simply cannot access these opportunities during their wealth creation phase.

How early-stage venture capital captures transformative growth

Professional early-stage venture capital funds are designed specifically for this challenge. They invest in 20-50 companies during their highest-risk, highest-reward phase, understanding that exceptional returns from winners more than compensate for inevitable failures.

Cambridge Associates research demonstrates this "power law" effect has consistently delivered 25-35% annual returns for top quartile early-stage funds over two decades.

The numbers speak for themselves:

• Pre-seed funds target 10x-100x returns on their best investments
• Growth-stage funds typically aim for 3x-5x returns
• It's exponentially easier to grow from $5 million to $500 million than from $1 billion to $5 billion

When public markets finally get access, growth is largely complete

When Airwallex eventually goes public, individual investors will finally have the opportunity to own shares.

But they'll be purchasing a mature, established business valued at billions rather than participating in the foundational value creation that generated exponential returns for private investors.

The critical insight isn't that public markets are poor investments. It's that modern wealth creation increasingly happens in private markets first. By the time companies reach public exchanges, their most dramatic growth phases are largely behind them.

For sophisticated investors, the question isn't whether they can afford to invest in early-stage venture capital. It's whether they can afford to remain entirely disconnected from where modern innovation creates transformational wealth.