I wonder how much this mini-article about Twitter subscription services may have been in response to Galloway's article last week?

Or will they, as he suggests they do so often, make a head fake to something they might do and then just do nothing (again)?

Vu, Jonathan T, Benjamin K Kaplan, Shomesh Chaudhuri, Monique K Mansoura, and Andrew W Lo. ‘Financing Vaccines for Global Health Security’. Working Paper. Working Paper Series. National Bureau of Economic Research, May 2020. https://doi.org/10.3386/w27212.