Dewey Dykstra’s target article, together with his response R2, forms an important treatise on why radical constructivism (RC) has more potential than realism. It is an interesting paper for several reasons. It examines the solipsism-reproach radical constructivism is often confronted with, it sheds light on how RC performs in science education, and explains how it relates to science. While I do support many of his arguments, I am skeptical with regard to some other points he makes, especially concerning whether a scientific world dominated by RC would unavoidably turn into a better world.
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