The quote “He could feel it on his neck, still, like a hot paw” reveal that Mr. Hadley remembers the Veldt very clearly.
Explanation:
'The Veldt' by Ray Bradbury is an excellent science fiction which depicts a tale of advance of technology and how it is important for people and parents to maintain a good communication during such times of technological advancements.
George Hadley is the central character of the novel The Veldt. As the story moves forward, we come across a quote '"He could feel it on his neck, still, like a hot paw.' From this quote we can figure out that Mr. Hadley still remembers the veldt very clearly and vividly. He recalls each and every small details with absolute clarity, as if it was all real. And that was the time when Hadley realizes that something is wrong.