This document discusses the role of imagination in human-computer interaction (HCI) design. It argues that while HCI has traditionally focused on creating functional and problem-solving technologies, envisioning imaginative futures through practices like speculative design, design fictions, and steampunk can help expand what is possible. This kind of "technological imagination" draws from fields like science fiction and aims to critique assumptions while cultivating new ideas. The document examines various examples of conceptual designs that envision technological possibilities through an imaginative lens. It suggests HCI would benefit from such an approach by giving "sense and passion" to future technologies that do not yet exist.