Clearly the holodeck safeties were off.It is remarkable as VR has the power to trick our reptilian brain. First times you use it you will experiment vertigo, real physical fear including goosebumps and cold sweats, anguish, etc. (i particularly remember the dark mine in Arizona Sunshine, i really dont want to return there, ever)
Then the neocortex takes command and you will gradually be able to control any situation. Some people however never achieve it 100% . My mother for instance is unable to complete Richie's Plank Experience not matter how many times she tries, she simply cant walk along the plank. My brother cant stand subnautica for more than 5 minutes and a friend of mine cant tolerate frontal crashes in racing sims... Some people however should simply be kept away of any HMD:
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I've never tried these things, but it looks like they're best used in a padded room.