Do you believe that time is linear?

[Make America Grumpy Again]

Do you believe that time is linear or not?

[HillGoose]

since last thursday it has been

[vitoNova]

People tend to romanticize and mystify the concept of time by asking meaningless, metaphysical questions such as "is time linear or circular?"...when at the end of the day, time is simply boring causality. 

[Dr. MB]

Of course not. It's subjective. We're not all experiencing the same time at the same time and that is multiplied to extreme factors when long-distance space travel comes into the picture.

[°Leprechaun]

https://en.m.wikipedia.org/wiki/Poincar%C3%A9_recurrence_theorem

An interesting hypothesis which may be compared to the eternal return
(Kudos to Hill Goose for his input)

[Torie]

Time slows down as you travel close to the speed of light doesn't it? Elon Musk hasn't invited me to take a ride in his spaceship to experience that yet.

[Benjamin Frank]

Physicists claim that it isn't, but that logically doesn't make any sense to me. Yes, there are some very wierd things that happen at high speeds, but I still maintain that causality requires time to be linear.

[Associate Justice PiT]

Time slows down as you travel close to the speed of light doesn't it? Elon Musk hasn't invited me to take a ride in his spaceship to experience that yet.

     Indeed it does. For that reason, two events that are simultaneous in one frame of reference are not necessarily simultaneous in a different frame of reference. Einstein elegantly demonstrated this using a thought experiment of a conductor on a train.

[Amenhotep Bakari-Sellers]

In time and space it's linear but we don't know what's it's like in the Astral plane during Death

[Antonio the Sixth]

Physicists claim that it isn't, but that logically doesn't make any sense to me. Yes, there are some very wierd things that happen at high speeds, but I still maintain that causality requires time to be linear.

The really weird thing about time in physics is that we have no clear sense of why it should flow in a particular direction. The fundamental equations of motion work equally as well from past to future as from future to past. At that fundamental level, it's impossible to tell cause from effect. And yet, causality is a fundamental part of our lives and something that can't just be waved off as an artifact. It is very real and if flows only one way - but we still don't understand how.

Anyway, as to the op, linear progression and cyclical recurrence are both important conceptual frameworks we need to understand time, and they shouldn't be thought of as opposites.