There are so many options.
Kerber was under pressure straight away on her own serve and the match might have taken a different course if Ostapenko had not blazed a forehand long at 30-30 with the court gaping.
Perhaps the best option is simply The Greatest.
The 21-year-old Latvian dropped a set for the first time in this year's tournament as she committed 19 unforced errors. "I just feel like when I don't have anything to lose, I just can play so free, and that's kind of what I'm doing".
Williams is playing only her fourth tournament since the arrival of baby daughter Olympia in September and is now just one win away from her eighth Wimbledon title. Serena's serve is too good at the moment, which will counter Kerber's return and ground strokes. "For me it's such a pleasure and a joy because, you know, less than a year ago, I was going through so much stuff".
While previous year was tricky professionally for Kerber, life was tougher for Williams away from the court. "Every time I go out there, I want to take a giant step forward", Serena said when asked if she had surprised herself by making the final. Immediately, though, she broke back at love to end it, placing her left fist on her chest when Goerges' last shot landed long. Because of all the blood issues I have, I was really touch-and-go for a minute.
"It's about picking yourself up off the floor", said Jill Smoller, Williams' close friend, confidante and agent of almost 20 years. "It wasn't as tight as I was used to", she said last month. I know that I have to play my best, best tennis to beat her, especially on the grass, on the centre court, where she won so many titles here.
American doubles great Mike Bryan reached his first Grand Slam final without twin brother Bob on Thursday when he and Jack Sock beat Briton Dominic Inglot and Croatian partner Franko Skugor in a five-set thriller at Wimbledon. Kerber turned pro at age 15.
"I nearly didn't make it, to be honest", Williams said shortly after completing her 6-2, 6-4 semifinal victory over 13th-seeded German player Julia Görges on Thursday, denying German fans an all-German final.
That title pushed her past Steffi Graf's record of 22 majors in the half-century professional era; Court won some of her Slams during the amateur era.
But with the clock ticking, and having already celebrated her 28th birthday, Kerber stunned Williams in the 2016 Australian Open final to claim her maiden Grand Slam title. It will be close but I think Serena pulls this off to tie Margaret Court's Grand Slam total at 24. There was one brief blip to come: Williams got broken for the only time while serving for the match at 5-3.
"I see a champion", Kerber said, "that's for sure".
Besieged by allegations that results of matches between the pair were "fixed" by Richard, the situation became ugly at Indian Wells when Venus withdrew injured just before her 2001 semi-final against Serena.
It's a staggering achievement for Williams, who defeated Kerber in the 2016 final at the All England Club before sitting out the 2017 tournament to prepare for motherhood.
The youngest of five daughters, Serena was drilled intensely by her father Richard Williams, who was happy to let schoolchildren hurl insults at his girls as they played.