6. Interactive model — investment vs BC cost
A capital-allocation view of the TG3 deal: the investment is a fixed pot, the blockchain commitment (Option C) draws it down year by year, and the headline is how much is left for non-BC growth. Adjust the assumption classes — Investment / Operations / Cost growth / Etherlink / BC — and the two charts recompute live. Export the per-year table (CSV) or either chart (PNG) from the toolbar.
Model basis
Chart 1 — BC cost per year (one-off build+audit in Y1 + maintenance + Etherlink fees for messages & bridges, scaling with volume growth and inflation) against the total investment as a reference line. Chart 2 — net investment remaining for non-BC growth = cumulative investment received − cumulative BC cost; green while capital is still available, red once the commitment overruns it. This is a capital view: BC cost is charged against invested capital and operating revenue is excluded — the conservative "how much of the money survives the commitment" number. See 5. TCO & bridging for the cost basis and 4. DeFi experts' opinions for the architecture trade-offs.