There is v little if any commentary on the role of fiscal policy in the AI capex boom. Probably the most significant difference to the late 90s. The deficit is actually crowding in private sector capex via an unusual channel. The irony of deficit antipathy in Silicon Valley.
Very skeptical that the US Treasury buying back long-term debt will have any lasting impact impact on rates. Such things are durable only if you have unlimited firepower, and the willingness to use it.