           }
       }
       .flatMap { $0 }
+    
+    self.fieldSize = fieldSize
   }
   
   func uniqueGenomes() -> [(genome: Parameters, count: Int)] {

   26 * (277.87, 15.02, 35.48, 0.68, 0.05, 82.96, 0.46, 0.9)
   ...
   */
  init?(_ recipeText: String, numberOfPopulation: Int? = nil) {
    func parseLine(_ text: String) -> (count: Int, genomeText: String)? {
      let components = text
        .replacingOccurrences(of: " ", with: "")

      }
    let magnitude = Value(numberOfPopulation ?? sum) / Value(sum)
    
    population = recipe
      .map { value -> [Individual] in
        let count = Int(Value(value.count) * magnitude)
