As God ensures the continuation of the series of occasions constituting the contingent world, does the continuation of the series of occasions of his own reality necessitate, as Neville puts it, «another kind of super-divine ontological being» (p. 61)-- whose continuation would, presumably, require the postulation of a super-super being and so on ad infinitum? (religion-online.org)
You can refine this kind of model ad infinitum by adding and tweaking vessels, valves and pump etc... i.c. the parameters of the model to fit historical data or to try and make a guess at what the future will be. (judithcurry.com)
Although a clause in the law that funds NIH prevents the agency from funding research that would harm or destroy an embryo, a lawyer at the Department of Health and Human Services ruled in 1999 that because stem cells — which can grow ad infinitum in culture — are not themselves embryos, the NIH could fund work with cells that were derived by privately funded researchers or researchers overseas. (sciencemag.org)