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A comment on Ways to travel at nearly the speed of light. Parent comment
As far as we know, you always wind up with more drag than you can overcome by using what you scoop as fusion fuel.
The most problematic part is likely the fantastic particle and radiation flux that would impinge on the front of the craft.
Exploiting time dilation would probably be rendered impossible by this.
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As far as we know, you always wind up with more drag than you can overcome by using what you scoop as fusion fuel.
The most problematic part is likely the fantastic particle and radiation flux that would impinge on the front of the craft.
Exploiting time dilation would probably be rendered impossible by this.