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VCs, Superhuman Mail founder share red flags about product-market fit

TechCrunch Startups · Oct 23, 2026 · 4:57 PM ET

Top investors from Iconiq and Sapphire Ventures, along with Rahul Vohra, the founder of Superhuman Mail, share the do's and don'ts for building hit products.

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Rules judge pick: Builders item; Topics: equity, real estate; Source: TechCrunch Startups.

Builder score 83

0 to 100: how useful this is for building or owning income-producing assets, digital or physical. Not a rating of how big the news is.

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Agent cloud startup Daytona hits $1B valuation backed by FirstMark and a who’s who of angels

BuildersOct 21, 2026 · 5:16 PM ET · TechCrunch Startups

TechCrunch Founder Summit is a full-day gathering in Boston on November 4 where founders across all stages connect with top VCs and experienced entrepreneurs to gain tactical insights on building and scaling their companies.

Builder score 67