Comment by gregable

I've been working on and off for many years on https://ssa.tools/ - a site that helps folks figure out their social security benefits for retirement planning. I recently added and continue to iterate on a new feature for specifically helping you understand the tradeoffs of choosing different filing dates at https://ssa.tools/strategy - it was interesting trying to optimize the performance enough to let the user drag sliders and get 'instant' response time, especially in typescript.