Yacht concepts are the lifeblood of innovative design. From alarmingly surreal creations made with AI software to Feadship’s attempts with its 272-foot Dunes concept to build a net-zero superyacht, the attention-grabbing concepts create a diverse melting pot of superyacht design.

Take Pegasus, the 290-foot concept designed by Jozeph Forakis. It was pitched as the world’s first 3-D-printed superyacht. It’s designed to be constructed using robotic printing to create a mesh framework integrating both hull and superstructure. This build method would require less energy, material, waste, space, and time than a traditional new build vessel.

Aside from mirrored wings and an aquarium-style lap pool, the yacht’s standout feature is a multi-level “tree of life” hydroponic garden used to grow fresh produce and provide onboard air purification. According to the designer, who claims to have imagined the concept while on a beach on a Greek island, Pegasus has been developed with a “science fact, not fiction” philosophy.

Forakis says the concept is “bold but achievable, where man and machine live in harmony with nature.” That may be an overstatement, but it does underline where inspiration for many concepts originate—an idea that goes beyond technology and the ways designers see for improving life on board.

From the sublime to the ridiculous, superyacht concepts are always food for thought. These seven new concepts illustrate just how far designers are willing to go to capture the imagination.