The centrifugal "infinite" resources research doesn't do anything currently, is that intentional?
While it's intensional that the recipes those technologies hold get hidden when Space Age is installed, it is indeed a bug that you can still see those techs. Will be fixed in the next update.
Oh and the prophesied "quantum processor -> 200 splitters" will also be added in that update :D Do keep in mind that I grouped it as "silly", meaning it defaults to hidden and will only be available when the"Enable silly recipes" setting is checked.
Thanks for the bug report, (btw I'll shortly update the modpages to include a link to the showcase, thanks again for that!!) :D