How could they reach the moon with primitive computers and now, with so much progress, you can't?

 

The computer is not the biggest problem for making this trip, at the time it was mainly used to free up work time for the crew, it is rather the equipment which sends this computer into space: It costs a crazy amount of money.Can't we anymore? no, we can always do it, but it costs and we need political will (at the time it was a cock competition between Americans and Russians, this will).What would it bring politically to do it today? Response from the guy on the street: “yeah meh, that was already done 60 years ago”.The West has no reason to repeat this journey given the potential gains, but this is not the case for the current rising powers (but if that happens it will perhaps restart the cock competition).