time construction or research for old universe is very long , so win 2h for a long research ( minimum during 1 month - 1 year ) are not efficient, even combining 10 or 20 items
those Items are useless

i propose to link Newtron to IRN level, the more the universe is aged, the more the level is high
and
i propose to link Kraken to nanite lvl

for nanite lvl 6 : Kraken silver = 2 * 6 = 12h