Dyson agrees that anthropogenic global warming exists, and has written that "[one] of the main causes of warming is the increase of carbon dioxide in the atmosphere resulting from our burning of fossil fuels such as oil and coal and natural gas." However, he believes that existing simulation models of climate fail to account for some important factors, and hence the results will contain too much error to reliably predict future trends:
Freeman Dyson also doesn't understand gravity (no one does). But that doesn't mean some vague claims can't be made about the two -- "heavy objects hurt when they fall on your foot" isn't a rigorous scientific statement, but it is true, as is his (vague) quote above.
Oceans make up 75% of the earth...
Whoa there! All your fancy number-facts are makin' my head hurt.
Pin head. The term was originally written as two words.
Nope -- regardless of star status, Jupiter is farther away from the Earth than Sol.
... the longer it takes the less practical it would be to use it against a moving target.
Certainly true, but given that light is (near as makes no difference) instantaneous in this case, having the target in your sights and hitting it are the same thing. If the range is increased enough, I suspect that this would be a much easier weapon to use than, say, projectiles, as there's no possibility of evasion.
People always misuse that word. I think you mean, "infected"
Specifying the location of the 10^25 stars in the visible universe to an accuracy of 10 cubic kilometers...gives an energy density of about 10^-30 g/cm^3.
So they roughly recover the quantum mechanical (apparently incorrect) result if they use Planck length^3 voxels.
Not that I read the article of course, but this seems an odd thing to do, as you should probably be confining them to hbar units of phase-space, not just confining them to voxels.