Feedback system, feedback control method, and electronic device

A feedback system comprising:

• a deformable interface configured to be able to apply pressure to a part of a user operating, in an actual environment, an operation target moving in a different environment;
• an actuator control unit configured to control an operation of an actuator changing a shape of the deformable interface;
• a temperature changing unit configured to be able to change a temperature of the deformable interface;
• and
• a temperature control unit configured to control a temperature of the temperature changing unit, wherein
• the actuator control unit is configured to control the operation of the actuator based on a change in a tactile sensation estimated to be obtained by the operation target,
• the temperature control unit is configured to control the temperature of the temperature changing unit based on a change in temperature estimated to be perceived by the operation target, and
• a deformable member that has elasticity between the deformable interface and the temperature changing unit, wherein the deformable member is deformable in accordance with a physique of the user.