[saagarjha]

Fixing the width of a tab is akin to trying to define the value of x to be 3.

[huhtenberg]

I have no idea what you mean.

[saagarjha]

  set tabsize 4

[huhtenberg]

Sure, you can set it to 4 and a properly formatted code will just adjust. That's granted, but irrelevant. The question is in usability of different tab sizes.