In 2023, five people were thought to be trapped 10,000 feet under the cold, dark ocean in a little submersible without power.

The now infamous story of the tight submersible would ultimately end in tragedy, but it's not actually the first incident of its kind.

In the 1970s, there was another eerily similar situation, and this is that horrifying story.

Not too long ago, the world's attention was fixed on a situation in the middle of the North Atlantic

ocean when a submersible, traveling to the wreck of the Titanic, began to hit news channels.

It's now an infamous story with a terribly tragic ending, and the assumed scenario of the

Titan submersible in 2023 as events were unfolding was the stuff of nightmares.

Five people were thought to be crammed into a small vessel that was without power

and was stuck on the bottom of the ocean in complete darkness, tens of thousands of feet below

the water. But even worse, it was thought to have a limited supply of air that was dwindling

with every passing minute. It was a literal race against time to recover the submersible

that turned into an international effort to rescue those aboard. News outlets even displayed countdown clocks that crept closer and closer to zero,

which were supposed to indicate when the five aboard would run out of air.

Meanwhile, expert after expert gave insight into just how challenging and improbable of a rescue effort this was.

When those countdown clocks finally ran out, an underwater remote camera arrived

at the scene and confirmed that the submersible had likely suffered a catastrophic implosion

during its descent, contrary to what was initially thought. For many of us who were glued to

news sources for any updates over those five days or so while the fate of those board was in question,

there was no real point of reference for anything like this.

It was almost like a movie skirt playing out in front of her eyes, but for some people,

this was not the first incident of the kind they'd seen play out.

In 1973, Roger Mallinson was a 35-year-old engineer working on a Canadian commercial submersible called the Pisces 3. Alongside him was 28-year-old Roger Chapman,

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