I spotted another grammar oops. In section 2 ("Commodity Hardware Today"), seventh paragraph (the one immediately after the first bullet-point list), the last sentence reads: "This problem, therefore, must to be taken into account." That should be either "needs to be taken into account" or "must be taken into account."
This is, of course, an artifact of editing the paper, where "needs to be" was changed into "must be" at some point but the leftover "to" was missed.
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