Isn't immortality physically impossible due to the 2nd law of thermodynamics? Sure, we can live for a much, much longer time. But, "long" is relative, mostly

Isn't immortality physically impossible due to the 2nd law of thermodynamics? Sure, we can live for a much, much longer time. But, "long" is relative, mostly based on what we expect. I.e. now we believe living 80 years is a long time, whereas centuries ago 40 may have seemed a long time. What I'm saying is that surviving until heat death may seem long now, but that's only because it is currently impossible. Such "immortality" may seem very short if we could actually do it. A similar situation is people who always complain they don't have enough money no matter how much they make.