Lots of the ideas of powder toy are based on realism, this is good but it would be boring if it was completely realistic. And changing it would break many saves :(
@Minishooz(View Post) yes, although, it is nice to have enough realism to actualy make it a simulation game - which is what tpt already incorperates. If a new suggestion for a "realistic" feature doesn't break saves, it should only be added if it is cool - An example for this would be event horizons.