On: Hilary Putnam has died

[nerfhammer]

One difference is <s>Putnam concludes you can't tell whether life is an illusion or not</s>, whereas Descartes concludes you can and also god exists. Setupwise it's essentially the same.

EDIT: I got Putnam wrong. There is still the theistic difference though.

[hyperpape → nerfhammer]

That's not right. Putnam's argument is explicitly anti-sceptical. See the Stanford Encyclopedia article linked down thread.