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Trade: Will Bryan Johnson propose to his co-founder before 2027?

31% YES 69% NO

Opened · Settles · 9 comments

Resolution criteria on PolyGram: Bryan Johnson recently made public his relationship with co-founder Kate Tolo (https://x.com/bryan_johnson/status/1995953490930401334). This market will resolve to "Yes" if Bryan Johnson proposes to Kate Tolo by December 31, 2026, 11:59PM ET. Otherwise, this market will resolve to "No". If it is definitively determined that Bryan Johnson and Kate Tolo have ended their romantic relationship within the stated timeframe, this market will immediately resolve to "No". The resolution of this market will be photo or video of the proposal, or official statements of Bryan Johnson, Kate Tolo, or their legal representatives, otherwise a consensus of credible reporting may be used.

PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.

Liquidity
$871
Total Volume
$8K
24h Volume
Open Interest
$2K
Trade this market on PolyGram →

Market outcomes

Will Bryan Johnson propose to his co-founder before 2027? 31% YES69% NO

Market context

Bryan Johnson, the longevity entrepreneur and Braintree co-founder, publicly disclosed his relationship with Kate Tolo, his co-founder at Kernel, in June 2022. The market assesses the probability he will propose to her by the end of 2026, giving a roughly four-and-a-half-year window from the relationship's public announcement. Current order book activity on Polymarket prices this outcome at 31% YES, reflecting moderate scepticism about a formal engagement within the specified timeframe despite the couple's established professional and personal partnership.

Comparable cases suggest engagement timelines vary considerably amongst tech founders. Some high-profile tech couples have married within two to three years of public relationship disclosure, whilst others have maintained long-term partnerships without formalisation. Johnson's age (currently 57) and prior relationship history may inform trader assessments, though his documented focus on longevity and life optimisation could cut either direction regarding conventional milestones. The 31% implied probability sits between pure speculation and base-rate expectations for established couples in their mid-to-late stages.

Traders should monitor announcements regarding Johnson's professional ventures, particularly any major Kernel developments or health-related initiatives that might influence personal life decisions. Public statements from either Johnson or Tolo about relationship intentions, marriage philosophy, or family planning would constitute material information. Media coverage of their joint appearances and professional collaborations may also signal relationship trajectory shifts. The market settles on documentary evidence—photographs, video, or official statements—making verification straightforward upon resolution.

How this market resolves

Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a two-hour dispute window opens, and if no one stakes a counter-claim the payout is final. Contested outcomes escalate to UMA token-holder voting. Payouts clear in USDC to the winning side.

How to trade this market step by step

The mechanics for trading "Will Bryan Johnson propose to his co-founder before 2027?" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.

  1. Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
  2. Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
  3. Pick a side. Buy YES if you believe the event will happen; buy NO if you think it won't. The current YES price reflects the market's collective probability.
  4. Size your position. If you stake 100 USDC at 31% YES, you'll receive shares that pay $323 if YES resolves true — a 223% gross return. If NO resolves, your shares are worth $0.
  5. Set risk controls (optional). Stop-loss, take-profit, and limit-order types all supported. Use the trade ticket's slippage box to cap your maximum entry price.
  6. Wait for resolution. When the event resolves on-chain via the UMA optimistic oracle, the winning side settles to 100¢ automatically and USDC hits your balance within seconds. Withdrawable to any wallet you control.

How active is this market?

$8K in lifetime turnover and $871 of resting liquidity puts this market in the below the median by volume for tech contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.

The market has been open for 5 months — the price has had time to stabilise as new information arrived.

Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.

Key terms

YES / NO share
A binary outcome token that pays $1.00 if the underlying claim resolves true (YES) or false (NO), and $0 otherwise. The market price between 0¢ and 100¢ is the implied probability.
CLOB
Central limit order book. The matching engine that pairs YES buyers with NO buyers (effectively the same trade). Polymarket's CLOB on Polygon executes trades on-chain via the conditional-tokens framework.
Liquidity
USDC capital sitting in resting limit orders inside the order book. Deeper liquidity means smaller slippage on large trades and a tighter bid-ask spread.
UMA optimistic oracle
The on-chain dispute system that settles each Polymarket market. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution.
Slippage
The difference between the displayed mid-price and your fill price. Affects market orders most; limit orders avoid slippage but may take time to fill.
Conditional token
ERC-1155 outcome share issued by Gnosis Conditional Tokens on Polygon. The token type that resolves to $1.00 or $0.00 at settlement.

See the full prediction-market glossary →

Frequently asked questions

What is the current probability for "Will Bryan Johnson propose to his co-founder before 2027?"?

As of today, traders on Polymarket price this outcome at 31%. The number updates continuously as the order book clears. PolyGram mirrors the same live odds with locale-aware formatting and USDC settlement.

How does this market resolve?

Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a 2-hour dispute window opens, and if uncontested the payout is final. Contested outcomes escalate to UMA token holders.

When does this market close?

This prediction market is scheduled to close on 31 December 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.

How can I trade on "Will Bryan Johnson propose to his co-founder before 2027?"?

To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.

What happens when the market resolves?

When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.

Risk and regulatory note

Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.

Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.

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