Barack Obama’s acceptance speech yesterday at the Democratic National Convention was remarkable in its clarity and delivery. Concrete attacks on John McCain and clear policy statements replaced the at times lofty oratory of some his more recent speeches. Yet it was hard to even look away for the entire duration – that’s how riveting the delivery was. And none of it involved powerpoint slides. The speech managed to be substantive and rousing at once using just words. This was such a welcome ch...