A new type of universal computer memory – ULTRARAM™ – has taken a step closer towards development with a successful experiment. ‘Universal memory’ is a memory where the data is robustly stored, but can also easily be changed; something that was widely considered to be unachievable until now. The new non-volatile RAM, called ULTRARAM™, is a working implementation of so-called ‘universal memory’, promising all the advantages of DRAM and flash, with none of the drawbacks.