The letter criticizes Mr. Pyle's proposal to use a nonspace character before two characters to be printed in a single position, arguing that this can lead to errors when reading or storing data in reverse order. The author suggests using the backspace character instead, which allows for reversible printing and storage. The letter also notes that the movement convention is implied only for character printers and that the method has limitations, especially when dealing with strings of graphic characters that do not necessarily imply movement. The letter points out a simpler derivation of Bellman's method for unstable linear systems and highlights its limitations. It explains that the method can only be applied if the initial condition on \( u \) is \( u(0) = 0 \). The letter also discusses the challenges of solving the transformed equation, particularly when \( v = 0 \), and suggests a substitution to resolve this issue. The author questions the conclusion that an unstable boundary value problem can be replaced by a stable initial value problem and suggests a direct matrix method as an alternative. The letter, written by a "subprofessional," lists three major objections to Dr. Orden's article "The Emerging Profession." These include: 1) the description of the Information Processing profession rather than the Computer Programming profession, 2) inadequate definitions of programmology, mathemology, and systemology, and 3) the restrictive qualification of "creative work" for professionalism, which would exclude many professionals like doctors, lawyers, and engineers.The letter criticizes Mr. Pyle's proposal to use a nonspace character before two characters to be printed in a single position, arguing that this can lead to errors when reading or storing data in reverse order. The author suggests using the backspace character instead, which allows for reversible printing and storage. The letter also notes that the movement convention is implied only for character printers and that the method has limitations, especially when dealing with strings of graphic characters that do not necessarily imply movement. The letter points out a simpler derivation of Bellman's method for unstable linear systems and highlights its limitations. It explains that the method can only be applied if the initial condition on \( u \) is \( u(0) = 0 \). The letter also discusses the challenges of solving the transformed equation, particularly when \( v = 0 \), and suggests a substitution to resolve this issue. The author questions the conclusion that an unstable boundary value problem can be replaced by a stable initial value problem and suggests a direct matrix method as an alternative. The letter, written by a "subprofessional," lists three major objections to Dr. Orden's article "The Emerging Profession." These include: 1) the description of the Information Processing profession rather than the Computer Programming profession, 2) inadequate definitions of programmology, mathemology, and systemology, and 3) the restrictive qualification of "creative work" for professionalism, which would exclude many professionals like doctors, lawyers, and engineers.