"GET YOUR ASS INTO THE SimGym!" - Unc Tobi Easily the most interesting feature that @Shopify announced today in their Winter '26 Edition was the "SimGym". It allows you to unleash thousands of AI personas on your store to test changes before a real human ever sees them. Driving the cost of learning to zero. Here are the 10 simulations to run on Day 1 to improve your contribution margin: 1. The Elasticity Stress Test: Take your top 5 bestsellers. Simulate a 5%, 10%, and 15% price increase. Find the exact breaking point where the drop in conversion rate outweighs the gain in margin dollars. 2. The Free Shipping "Thresholdbreaker": If your free shipping threshold is $75, simulate moving it to $100, $125, and $150. Find the maximum AOV lift the AI will tolerate before cart abandonment spikes. 3. The Offer Structure Deathmatch: Stop arguing about whether "Buy 2 Get 1 Free" is better than "25% Off." Run the sim. Which offer generates more net profit dollars (not just revenue) after accounting for the cost of goods? 4. The "Discount Detox": Simulate turning off your 10% welcome pop-up completely. Does the increase in full-margin sales outweigh the drop in list growth and conversion? 5. The Aggressive Cross-Sell: How much friction can you add to the cart? Test aggressive, multi-step upsell flows in checkout. Find the line between "AOV boost" and "rage quit." 6. The Returns Policy Squeeze: Simulate a stricter return policy (e.g., adding a small restocking fee or shorter windows). If front-end conversion only drops 0.5% but you save 4 points of margin on returns, that’s a massive win. 7. Merchandising for Margin (Not Volume): Re-sort your collection pages to prioritize your highest % margin products first, rather than your bestsellers. Does demand shift profitably, or do users bounce? 8. The "Subscription Default": Simulate making "Subscribe & Save" the pre-selected default option on PDPs instead of "One-time purchase." Measure the impact on immediate conversion vs. projected LTV. 9. The High-Ticket Lander Validation: Before you drive paid traffic to a new bundle page designed to spike AOV, run it through the simulator against your standard PDP. Validate the economics before you validate the ad spend. 10. SKU Rationalization Sim: Take your lowest margin SKU. Simulate deleting it entirely. Does that demand shift to a higher margin alternative, or does it leave the store? eCom is moving from a creative industry to an engineering discipline. Stop guessing. Start simulating. This is a huge step in progressive truth.