Take the documented stage-18 setup: a ~4-trillion-Fire wall, a pre-rebirth per-click value of 850 million. From the calculator page, that wall costs 1,883 clicks raw. At the 50x tier the same per-click stat effectively becomes 42.5 billion per click, so the same wall costs ceil(1.6 trillion ÷ 42.5 billion) = 38 clicks — and the 500-trillion bedrock wall behind it drops from 588,236 clicks to 11,765. That is the entire economic argument for resetting a run you have already invested hours into: the ladder converts stubborn walls into speed bumps, and it compounds with every click upgrade you re-buy on the fresh run.