Optimal 2003 blocker tech order

Would love to theorycraft a bit on the brutal 2003 start.

Digital society seems like it should be rushed first? Since it unlocks arrival org techs and 2-3 10% research techs. Plus infosci bonus for exascale.

Space or Exascale second? Exascale gives an additional research bonus, but delays the space game. Is it better to go for an automated mine on an asteroid, with heavy boost investment? Or to just rush space for normal moon - mars but less research “efficient” overall?