Navy called me once...they said I was highly qualified to serve on a nuclear submarine. I said the submarine part makes sense as every time I step on a boat it tries to sink.
I saw a picture earlier today of a bbq grill on a patio. The support poles for the patio were behind the grill. If it could cut out the grill and not get the poles too I would be impressed. It was difficult for me as a human to breakout just the grill in the image.
What if the plan worked perfectly? What if the ocean absorbed all the CO2 anyone could ever wish for? But at that point, can you stop adding alkaline to the ocean or would it just dump out all the extra CO2 at that point?