> For a long term marriage in which one spouse never worked, that spouse will likely receive spousal maintenance (alimony) calculated based on the last four years of income from the earning spouse. That will be owned in perpetuity regardless of future earning power.

That's...highly variable between different jurisdictions, even within the US, since every state’s family law is different (and support formulas and practices may even vary by county within states.) AFAIK, most states adjust spousal support periodically (of allow parties to request modifications) based on circumstances of both parties except in the case of a settlement specifying permanent fixed support, and the trend is away from true permanent support (even at variable levels) except where the supported spouse genuinely cannot become employable.