Science makes astonishing progress in improving our knowledge and
understanding of the world but philosophers, by contrast, have made no
progress at all in explaining how this progress is possible, despite
centuries of effort. Some of the world's greatest thinkers, from Hume,
Kant and Mill to Russell and Popper, have struggled to solve
philosophical problems about scientific progress, and have failed. Even
Einstein confessed he was baffled by the problem of what it means to say
of a physical theory that it is "unified", "explanatory", or in
possession of what he called "inner perfection". This book sets out to
solve the eight most fundamental philosophical problems about scientific
progress. These include the problem of induction, the problem of what it
means to say of a physical theory that it is "unified", and the problem
of specifying precisely what the progress-achieving methods of science
are. The enhanced understanding of scientific progress that this
provides has important implications both for science, and for our
attempts to achieve progress in other areas of human life where progress
is urgently needed and much less assured-above all, in the effort to
achieve social progress towards a better, wiser world.