You might have read prior reviews here on books that discuss the issues of present science and materialism, specifically opposing certain idealist views on relativity, the 'new physics,' the Big Bang and idealist 'science' in general. As part of this, Mike Gimbel's pamphlet on this issue was reviewed on January 1, 2014. (use blog search box, upper left, to find it.)
Gimbel has posted the two digital videos from his talks at Mayday on Saturday, April 5. The first, on 'dialectical materialism vs the new physics,' is linked to here.
Mike also gave a follow-on talk, to a bit different audience, about the basic need for left unity, which he calls a unity of 'Marxist-Leninists." It is posted here:
Posted by Karen & Jon,
April 12, 2014