The modern West has fallen prey to the tools they use. Tools have grown out of man's control, first becoming his master, and then ultimately man's executioner. The way forward from our current situation is not to abstain from tools, but to make convivial tools.
Convivial tools are tools which are free, creative, and can be used by anyone with minimal special training. Ivan Illich spends much of the book outlining examples of convivial tools and how many of our current tools aren't convivial. An example of a convivial tool is the alphabet. Almost anyone can learn to use the alphabet, and for his own purpose. The alphabet is cheap, it is not easily controlled by third parties, and people can take them or leave them as they wish. Other examples include the printing press (and I think email).
Contrasted with convivial tools are many of our modern tools. A nonconvivial tool would require special training, be too expensive to be used by most people, or would be limited to only a certain group of people. A dental drill could be convivial, but the licensing required limit it to dentists and make the tool nonconvivial. An example of a nonconvivial tool is a car. Like many nonconvivial tools, cars share the same serious problem where the means have turned into an end. Cars are also tools which require special training not available to everyone to use. They are too expensive to be used by all people, and not all people can use cars. In addition, cars create what Illich calls a radical monopoly on transportation. If I wanted to get from one side of Houston to the other, I can get there quite easily using cars, but I am not free to walk or bike there, at least not if I want to get there safely. Cars then have a monopoly on how to travel within the city. Cars are also not available for everyone to use, but only for the rich. Cars don't benefit the poor, but the poor have to pay for the usage of cars by the rich. Highways are considered public services, but they aren't. They are for private usage of those wealthy enough to own a car or have access to good public transportation. If highways were truly public utilities, then all would have the same access to them, but they are instead limited by income level.
Much of Tools for Conviviality is devoted to the themes I have written about above. The need for convivial tools and the captivity of modern, Western society to nonconvivial tools. As you may guess from what I have written above, this is not a cheerful book. Illich is profoundly pessimistic about modern, Western culture, and rejects many of the assumptions our society operates on unthinkingly. He denies that modern technology, public schooling, and modern medicine are good. All three have fallen out of balance with nature, and have become nonconvivial. As a result, the tools can no longer achieve their purpose. Public schooling no longer helps educate society, and modern medicine creates medical issues and limits our ability to be healthy. Tools for Conviviality is a challenging read, especially for those of us in the West.
Tools for Conviviality is also a challenging read because of the density of the material covered. A quick glimpse at the title and the chapter subsections will alert the reader what kind of book they should be expecting. Subsections titles include biological degradation, obsolescence, the demythologization of science, and the rediscovery of language. None of those sections are easy to read, but working through them to understand what Illich is saying is a worthwhile experience.
One of the reasons reading Illich is a worthwhile undertaking is because of the depth of his learning. Illich was a uniquely gifted man, and also one who was blessed with a unique life situation and community. He was one of the last true polymaths, a scholar of the middle ages who worked in 10 languages and developed his critique of Western society with the help of many other intelligent people and in several cultures. He does not reveal the depth of his erudition with copious footnotes (the book is free of footnotes), but you can tell the depth of his knowledge from his writing. The combination of individual brilliance, plus working in Latin America combine to give Illich a truly unique perspective.
My summary above of the book is woefully inadequate. I have mentioned what I understand to be the main ideas of the book, though many of the twists and turns and arguments I have left out. I hope I have conveyed the depth and importance of this book, and all thinking people would benefit from engaging with his arguments. Like Wendell Berry, Illich makes arguments which aren't easily rejected. They can be rejected, but more often they present hard truths we don't know what to do with. Even if you do end up disagreeing with Illich (or Berry), you need to face the depth of their struggle, the depth of their disagreement with our modern world, and their rejection of cultural axioms.
The weakest part of the book was the final chapter where Illich turned to predicting what will bring about a convivial society. I suspect he will be right about some things, but I am doubtful all of his predictions will prove accurate. For example, his hope in politics seems misguided and doesn't take into account the power political parties have over their voters. But I don't think the benefit of this book comes from the prognosis of the future. The strength of the book lies in Illich exposing modern Western assumptions and trying to shape our imaginations to what a better future looks like. More than any specific predictions, those two strengths make the book worth reading.
Reading the last chapter is also interesting in light of Illich's last years. He later would go on to repudiate his hopeful belief that a new future could be had. Instead we must renounce the assumptions of the world. This is what led to him dying of cancer and refusing to receive treatment. As I read Tools for Conviviality, I find myself wandering what a more mature Illich would have written as his conclusion. I also find myself wandering what does hope look like? Illich was a Catholic priest, and I am curious what part his faith played in providing him with hope. Faith is not explicit in this book, but from what I understand of Illich's life, his faith was always a guiding source for him. What would Illich's hope be given his faith? And how can that hope guide and shape my hope? And what does renunciation of the assumptions of the world look like for us? If Illich's prognosis is correct, then we are headed towards a crisis, but in the meantime our current ways are not working. We can learn much from Illich, though we still have to figure out our own path forward.