What do you think the world would be like without technology?
The first idea that comes to mind when answering this is that human beings have been using tools for over 2.5 million years, from the start of the paleolithic period. Even the most simple hand ax or digging stick is a form of technology.
Technologies have changed greatly over the past 2.5 million years, from simple hand tools to complex machines such as airplanes and computers, but each technology simply makes it easier or more convenient to do various tasks our intellects can conceive.
To understand what life was like at different stages of technological development, all one needs to do is study how people lived during those periods. For example, before the invention of automobiles, transportation technologies included horse back riding, boats, animal-drawn carts, and carriages, and animal or human drawn sleds. The steam locomotive was added to the repertory in the nineteenth century, and cars, rockets, and airplanes in the twentieth. Travel was slower and less common before the 20th century advances in transportation technology, but it still existed, especially for the wealthy or adventurous.
If some of our technologies ceased to exist, we could certainly adapt to that, although people very heavily dependent upon any given technology might find such adaptation difficult.