Elaine Zelby

Co-Founder and CRO, Tofu · 1 appearance on the record.

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Elaine Zelby co-founded Tofu, a generative AI demand-generation platform for B2B marketing backed by Index Ventures and SignalFire. She previously served as a full partner at early-stage venture firm SignalFire and led product marketing and go-to-market initiatives at companies including Slack, ConsenSys, and Capriza.

16statements → 7claims → 6claims resolved → 67%fully supported → 3.88/5average certainty → 1.62/5average debate potential → ≈4.5/5argument clarity, estimated → 3said about them ↓

4 supported 1 partly supported 1 contradicted 1 not checkable as stated how the 7 claims stand · each chip opens the sources

7 assertions · 2 opinions · 3 insights · 4 disclosures · every statement was checked. The predictions and assertions are the 7 claims: statements the public record can support or contradict. 6 are resolved, and 1 names no date, number or outcome precise enough to check. Everything else (opinions, insights, what ifs, disclosures) can never be settled by the record, so it carries no assessment.

The record, in short

What the tape says about how Elaine argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.

Their most notable supported claim

Assertion Supported
Deel won by focusing on contractors over full-time international employment
“Their biggest competitors. So there's two big ones, papaya global and remote.com and deal started out a little bit differently. The other two said, Hey, we're going to really focus on full-time employment internationally. They focused on contractors”
Elaine Zelby Apr 26, 2021 ▶ 11:29 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175

Their most notable contradicted claim

Assertion Contradicted
Future Fitness charges $200 per month for digital virtual personal training
“You know what I was going to say though, a partnership opportunity for them is future fit because they're already charging people, 200 dollars a month for literally a digital subscription to a virtual trainer.”
Elaine Zelby Apr 26, 2021 ▶ 1:06:47 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175

Expressed certainty vs assessment result

none yet certainty 1
none yet certainty 2
75% certainty 3
75% certainty 4
none yet certainty 5

weighted support: a fully supported claim counts one, a partly supported claim counts half. Each filled bar is clickable and opens exactly those claims; "none yet" means nothing said at that certainty level has resolved yet

How they sound: not measured why? →

We measure speaking style by listening to the audio itself, and a fair number needs at least 2,000 words from one person on tape we have measured. There is too little of Elaine Zelby on measured tape to publish a rate. This says nothing about how they speak.

Everything Elaine Zelby said on My First Million that made the record, most notable first. Filter by type, assessment or year in the ledger →

Insight
Data-driven algorithmic VC investing fails at the seed stage, says Zelby
“In my opinion, it only works at certain stages and in certain categories. This does not work at all at the seed stage. You're betting on people for the most part, and you're betting on the growth of a category. There's no data.”
Elaine Zelby Apr 26, 2021 ▶ 24:28 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Insight
Long funnels work for consumer products, but B2B requires shorter onboarding
“One nuance here that is a hundred percent accurate for consumer and a hundred percent inaccurate for B to B for anything enterprise shorter is better.”
Elaine Zelby Apr 26, 2021 ▶ 48:21 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Disclosure
SignalFire uses proprietary algorithms for deal sourcing and talent intelligence
“So we buy, scrape, or, you know, aggregate every data signal you could possibly imagine. And our engineers have proprietary algorithms that use that data to do one of two things. One, we have different systems that are alerting systems for us on the investment…”
Elaine Zelby Apr 26, 2021 ▶ 7:48 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Disclosure
SignalFire completes a minority of investments purely from automated alerts
“On the sourcing side, we've definitely done deals that were completely from our alerting system. In addition, we just do a ton more outbound than the average firm because we'll go in these meetings and we'll triage based off of, oh, this looks interesting, and…”
Elaine Zelby Apr 26, 2021 ▶ 15:57 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Insight
Enterprise systems of record achieve defensibility because data migration is painful
“Ripping and replacing software is so painful, and it's incredibly hard to get people to do it. You've already trained your team on it. It has all of your information and data sitting in that system. It's just really hard to rip something out when it's there, w…”
Elaine Zelby Apr 26, 2021 ▶ 35:58 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Opinion
Shoe subscription startups must build B2B infrastructure for major legacy brands
“The only way I think you do this as an independent company is you provide the picks and shovels infrastructure for every brand to do it. So you go and sell to the Brooks, to the Nike, to the Adidas, to the Reebok. I think that's doable.”
Elaine Zelby Apr 26, 2021 ▶ 56:28 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Opinion
Remote personal training apps like Future fundamentally sell human accountability
“Essentially, in my opinion, FutureFit is paying for accountability. So you're paying 200 dollars a month for a person on the other end to, like, sort of care about you.”
Elaine Zelby Apr 26, 2021 ▶ 1:10:34 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Assertion Not checkable as stated
Tempo fitness extracts margins from recurring software subscriptions, not hardware sales
“They don't make a ton of money on the hardware part. They're making money on the subscription.”
Elaine Zelby Apr 26, 2021 ▶ 1:10:55 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Disclosure
SignalFire operates with one-third engineers to invest its $500M fund
“So if you look at our team, we're about a third engineers and data scientists building products. We're about a third people on our platform. These are the in-house business people doing PR recruiting growth, and then we have investment, and we, you know, we es…”
Elaine Zelby Apr 26, 2021 ▶ 7:13 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Assertion Supported
Deel won by focusing on contractors over full-time international employment
“Their biggest competitors. So there's two big ones, papaya global and remote.com and deal started out a little bit differently. The other two said, Hey, we're going to really focus on full-time employment internationally. They focused on contractors”
Elaine Zelby Apr 26, 2021 ▶ 11:29 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Disclosure
SignalFire reserves its proprietary data platform exclusively for portfolio companies
“We do not sell it and we don't spin it out. That's part of our whole selling point is that this is within the family. So if you come and take our money and become part of the SignalFire family, you get access to all this stuff. So we don't actually give it out…”
Elaine Zelby Apr 26, 2021 ▶ 20:32 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Assertion Partly supported
Approximately 75% of kids aged 9 to 15 are on Roblox
“75% of kids between nine and 15, I think, are on Roblox.”
Elaine Zelby Apr 26, 2021 ▶ 30:56 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Assertion Supported
The average Series A startup uses 34 different SaaS applications
“If you look at the average series a company they're using, I think the stat is 34 different SAS applications.”
Elaine Zelby Apr 26, 2021 ▶ 33:56 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Assertion Supported
Tempo fitness uses 3D computer vision to instantly correct exercise form
“Well, it uses computer vision to not only count the reps, but it checks your form. So let's say you're doing a curl and you're only going. It'll call that out. Or if you're doing a lunge and your knee is going over your ankle. And so part of the weight countin…”
Elaine Zelby Apr 26, 2021 ▶ 1:09:38 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Assertion Supported
Erik Voorhees launched unreleased crypto token basket platform Prism in 2017
“Well, in 2017, so Eric Voorhees, who was the guy that created ShapeShift, he actually created Satoshi Dice. He was super, super early in the crypto space. He launched something that never got out of private beta called Prism, and you could create a basket of t…”
Elaine Zelby Apr 26, 2021 ▶ 6:22 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175
Assertion Contradicted
Future Fitness charges $200 per month for digital virtual personal training
“You know what I was going to say though, a partnership opportunity for them is future fit because they're already charging people, 200 dollars a month for literally a digital subscription to a virtual trainer.”
Elaine Zelby Apr 26, 2021 ▶ 1:06:47 Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175

The other half of the tape: Elaine Zelby's own voice is left out of every number here. Other people bring the name up 3 times in 2 episodes on My First Million. every mention, with the transcript →

Who brings them up most Shaan Puri 3

Every mention by year

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Appearances (1)

EpisodeDateSpeaking time
Brainstorming Million Dollar Ideas with Elaine Zelby | My First Million Ep. #175 Apr 26, 2021 25m
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