Can a police officer stop a person for brief investigative stops because they are "unreasonable"?

"The Fourth Amendment to the United States Constitution prohibits seizures of persons, including brief investigative stops, when they are 'unreasonable.' [Citations.] Our state Constitution has a similar provision. (Cal. Const., art. I, 13.) A seizure occurs whenever a police officer 'by means of physical force or show of authority' restrains the liberty of a person to walk away." (People v. Souza (1994) 9 Cal.4th 224, 229.) "[T]he temporary detention of a person for the purpose of investigating possible criminal activity may, because it is less intrusive than an arrest, be based on 'some objective manifestation' that criminal activity is afoot and that the person to be stopped is engaged in that activity." (Id. at p. 230.)