Edited sentence: " Roberta Lincoln summed up in one character the almost desperate need we had in the 1960s to know that humanity would not only survive but thrive."I want to believe you.Come to mention it, we still need that hope.I know this world needs help.In interviews since, she has refused to talk about 'Star Trek' in any way ...which is rather a pity, as her performance in that episode was compelling.That's why some of my generation are kind of crazy and rebels.The hem was taken up so much it became very distorted.We wonder if we'll be alive at 30