Selection phase Question

[Selection phase Question]

Thanks for the replies!

[Selection phase Question]

Can I intentionally pick an action or item I know is going to be invalid during the resolution phase?  There was a case I wanted to stay in the secret room waiting for the halo conference room to open up (which it did next turn).  Could I have played the extract/download card again even though there is no data left in the secret room to essentially allow myself to stay in the same room another turn?  It seems like I could???  I read the rule that forbids playing the Advance/Retreat while delayed but there was nothing about playing a card you know won't resolve.