array:5 [
  "content-type" => array:1 [
    0 => "text/html; charset=UTF-8"
  ]
  "cache-control" => array:1 [
    0 => "no-cache, private"
  ]
  "date" => array:1 [
    0 => "Wed, 25 Dec 2024 17:52:21 GMT"
  ]
  "set-cookie" => array:2 [
    0 => "XSRF-TOKEN=eyJpdiI6ImpLUk0xdktTSG1GYXJsbmJZcFdlSmc9PSIsInZhbHVlIjoiTEo2bGFNZ0V1c0s4VnVndE9vTzEvT2NPZU1ZcTJhd1kxbWhHd29LVHpnN01meWNJODFhQWorLzF1czBJV2Y0T0VwZjZJS1pqeDBNSnRwZVNVZVgwc2cyY3BwMzZrck1WVnBEL01nVVpEenlUMjI1c0svUzJvcURoVUU4UjdiWkQiLCJtYWMiOiJiNGI0NDcxNjJjZjE5NzMzNTkyZGRmOGFkOTk5ODUxNWFkNDNkZDhhNzM4YjJjZDY5ZWQ4ZTQzYTQzOGEyMDJjIiwidGFnIjoiIn0%3D; expires=Wed, 25 Dec 2024 19:52:21 GMT; Max-Age=7200; path=/; domain=.24houranswers.com; samesite=lax"
    1 => "24houranswers_session=eyJpdiI6InFKRUlVODJIbDBQb01oL00vcDJqUlE9PSIsInZhbHVlIjoiQ05qTDRuRlZxcWpkMTVxaUZybHJ1VlJUL2krWjN0WFBCeGViVm1BcVBlb3J1Q00xaE9WcHBiMCt4U05TYzBmTGNFY0RIaTBoWXE4VDZjWnFESFNidGlOYzNzNjNFdHg5aVk5N1E3dTV1MTlQeGhJN0Z1bTh0T1p3MWhEU0dLT1kiLCJtYWMiOiI3MjcwNjllZDI0ZTg2ZTIxNWY4Yzk3OGQ2ZWExMDVmNmI0MmRhMjYzNTJhOWYyZDNjMTUwYjA3OWU1ZDVlZTBjIiwidGFnIjoiIn0%3D; expires=Wed, 25 Dec 2024 19:52:21 GMT; Max-Age=7200; path=/; domain=.24houranswers.com; httponly; samesite=lax"
  ]
  "Set-Cookie" => array:2 [
    0 => "XSRF-TOKEN=eyJpdiI6ImpLUk0xdktTSG1GYXJsbmJZcFdlSmc9PSIsInZhbHVlIjoiTEo2bGFNZ0V1c0s4VnVndE9vTzEvT2NPZU1ZcTJhd1kxbWhHd29LVHpnN01meWNJODFhQWorLzF1czBJV2Y0T0VwZjZJS1pqeDBNSnRwZVNVZVgwc2cyY3BwMzZrck1WVnBEL01nVVpEenlUMjI1c0svUzJvcURoVUU4UjdiWkQiLCJtYWMiOiJiNGI0NDcxNjJjZjE5NzMzNTkyZGRmOGFkOTk5ODUxNWFkNDNkZDhhNzM4YjJjZDY5ZWQ4ZTQzYTQzOGEyMDJjIiwidGFnIjoiIn0%3D; expires=Wed, 25-Dec-2024 19:52:21 GMT; domain=.24houranswers.com; path=/"
    1 => "24houranswers_session=eyJpdiI6InFKRUlVODJIbDBQb01oL00vcDJqUlE9PSIsInZhbHVlIjoiQ05qTDRuRlZxcWpkMTVxaUZybHJ1VlJUL2krWjN0WFBCeGViVm1BcVBlb3J1Q00xaE9WcHBiMCt4U05TYzBmTGNFY0RIaTBoWXE4VDZjWnFESFNidGlOYzNzNjNFdHg5aVk5N1E3dTV1MTlQeGhJN0Z1bTh0T1p3MWhEU0dLT1kiLCJtYWMiOiI3MjcwNjllZDI0ZTg2ZTIxNWY4Yzk3OGQ2ZWExMDVmNmI0MmRhMjYzNTJhOWYyZDNjMTUwYjA3OWU1ZDVlZTBjIiwidGFnIjoiIn0%3D; expires=Wed, 25-Dec-2024 19:52:21 GMT; domain=.24houranswers.com; path=/; httponly"
  ]
]
Write a summary of Ehrenfest, Born-Oppenheimer, and Car-Parrinello...
