meh...
When Ted Williams hit .406, he had just 27 SO in 606 PA. When Tony Gwynn hit .394 in 1994, he had just 19 SO in 475 PA.
Trout is at 60 SO before the season is half over. That in itself makes .400 next to impossible.
Excerpt from an article about Ted Williams...
Virgil Trucks tells a perhaps apocryphal tale about a game between Detroit and the Red Sox in Boston: “Joe Ginsberg was catching and Williams came up and walked on four straight pitches, and Joe’s questioning the umpire about it. On the last one, he said, ‘Bill’—Bill Summers was the umpire. He said, ‘Bill, don’t you think that ball was a strike?’ And Bill said to Joe, ‘Mr. Ginsberg, Mr. Williams will let you know when it is a strike.’”